<div class="xblock xblock-public_view xblock-public_view-vertical" data-runtime-class="LmsRuntime" data-usage-id="block-v1:MITx+22.011x+3T2018+type@vertical+block@819e0fea53194f8785c9cf2c7a0993d6" data-init="VerticalStudentView" data-runtime-version="1" data-course-id="course-v1:MITx+22.011x+3T2018" data-block-type="vertical" data-has-score="False" data-graded="True" data-request-token="64445f9efe0b11ee9b5e16fff75c5923">
<h2 class="hd hd-2 unit-title">1.2.3. Video Lecture</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+22.011x+3T2018+type@video+block@275c1a5b4fab4bb797e395a103289d08">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-runtime-class="LmsRuntime" data-usage-id="block-v1:MITx+22.011x+3T2018+type@video+block@275c1a5b4fab4bb797e395a103289d08" data-init="XBlockToXModuleShim" data-runtime-version="1" data-course-id="course-v1:MITx+22.011x+3T2018" data-block-type="video" data-has-score="False" data-graded="True" data-request-token="64445f9efe0b11ee9b5e16fff75c5923">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Video</h3>
<div
id="video_275c1a5b4fab4bb797e395a103289d08"
class="video closed"
data-metadata='{"speed": null, "publishCompletionUrl": "/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@275c1a5b4fab4bb797e395a103289d08/handler/publish_completion", "streams": "1.00:f4-2j5Gl_Q4", "prioritizeHls": false, "completionEnabled": false, "autoAdvance": false, "captionDataDir": null, "transcriptLanguages": {"en": "English"}, "recordedYoutubeIsAvailable": true, "showCaptions": "true", "completionPercentage": 0.95, "saveStateUrl": "/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@275c1a5b4fab4bb797e395a103289d08/handler/xmodule_handler/save_user_state", "ytMetadataEndpoint": "", "duration": 353.9, "autohideHtml5": false, "transcriptLanguage": "en", "ytApiUrl": "https://www.youtube.com/iframe_api", "lmsRootURL": "https://openlearninglibrary.mit.edu", "sources": ["https://d2f1egay8yehza.cloudfront.net/MITx22.011x-V004000_DTH.mp4", "https://d2f1egay8yehza.cloudfront.net/MITx22.011x-V004000/MITx22.011x-V004000.m3u8"], "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@275c1a5b4fab4bb797e395a103289d08/handler/transcript/available_translations", "savedVideoPosition": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@275c1a5b4fab4bb797e395a103289d08/handler/transcript/translation/__lang__", "saveStateEnabled": false, "ytTestTimeout": 1500, "poster": "https://mitx-edx-video-meta-storage.s3.amazonaws.com/media/video-images/826a26ef25d745e09f39641c60f11790.png?Expires=1713503838&x-amz-security-token=IQoJb3JpZ2luX2VjEMX%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJIMEYCIQCrs6M6AwVcgIw8rEFA8UX%2BeLW5J66K4yX5WeNewHW3owIhAKniS2WB4HfUE5lnINix1c1Vaw5RknXsjIxy8YxIjcK6KsQFCP7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQAxoMODU5MjA1NjM3NDExIgz5J4Xuw0NoZ%2FBRfH4qmAVW0EaIrGaDFjQgIoJGKelrFuTOyhFaHjNv5v1b3UxnfpmWwuY%2B6%2BLpoAsPn91kdJpON%2BvnvbHAauaJFusLVO6nbbQ%2FuH6vGMdw32c7t%2BO%2FF6KpcMb%2FLHlTBVmZOEJROyfV2BZA7zrBKTSEk7Mr%2B9eG%2Ft7HvlpDr%2FZ1ZAajpTLDZx741jdaYV83jkHLpBoauAj7URH%2FV9%2BxNg5xENMm3WMFlW%2BE5Rewk517hYXB8U3bsqkVlOITQBlqoAcaRYWMUtiptlGb660uEDihEcS3pEOS3nxr16utC5ZHzXK3fyv%2FODrFWp1PdZC5fkxHjBZEBFBF5A1tKMefObtUvbElFO2I5Wc1W1NhxowujVXUMCZc7U3Irsmx6bDkViJRDNhB%2BOl4zpnr69xneGVCd%2BcEYobdTYO1AO3mc4RPSFVBMIztzZ0qJTt7e%2FdV35MC8Y5U199EgUtcm79MnbxzxMk8%2BwlK3IMMVl3v8pWeXI712LC7mVde7jre0OsM8s%2BO6fiFEDko4S4ihVRJaUgeT1yPztZgkx8gYixP67WN4E25jRv6ajMlcSvR4U2mrX1nUXIY8qelPm9OGlfV%2FB%2F7dD3HN4LUPk6thKEahGgD9itpSiLG%2BhfPkwXR4mNldDnIutxhV1QLJDZZ8BZJeIHH9LV7usDBpRdxsPMAwAiyY2%2FLB3zfG1N7Kuseozup3poRj935WbSqy%2FHkIMuAN32IdsQbjtLSQxGXFVEIhAATB05Ec0j87lLufeu8cL9RJE5D0djWGwlpzLWNB1viJLCkWR51EXW1pCWGz0DvqqzuJRG%2BIicCJ7NO9le3p4UvvWch8Qh%2Fr9N1i2eRecHz1IpBmPPEhgVnou3bIzejlL%2BWNp9X%2BBRlg7nV47MGeeG7MK7rh7EGOrABkTchuNAuPFiol%2BcsEwsGkd73O6gacnHgy%2B3EYWymEgSRRVAseKz1ddEKK8MIdprp3S0aCXv9HVX7dZ9UOe4Smiurlicxw%2FCQBGc28XkrqdJn2AHNJkjoe66PsrXKCatKx0Y3kTZ%2FzSot9QlWklQo4qqajBBVFq6nljykui5w5XmfgwkhpuQWcjnaiFgNHcpWFJz9eQfZxW%2F9TyqZ3SVaDyQE6lfv7Ua4GshYjZXZd5A%3D&Signature=Yp1YuMVzd9tttsutS%2BDEZdbIPyQ%3D&AWSAccessKeyId=ASIA4QDFFSUR3VWCMKSE", "autoplay": false, "generalSpeed": 1.0, "start": 0.0, "end": 0.0}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="275c1a5b4fab4bb797e395a103289d08"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
<h3 class="hd hd-4 downloads-heading sr" id="video-download-transcripts_275c1a5b4fab4bb797e395a103289d08">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_275c1a5b4fab4bb797e395a103289d08">
<div class="wrapper-download-transcripts">
<h4 class="hd hd-5">Transcripts</h4>
<ul class="list-download-transcripts">
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@275c1a5b4fab4bb797e395a103289d08/handler/transcript/download" data-value="srt">Download SubRip (.srt) file</a>
</li>
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@video+block@275c1a5b4fab4bb797e395a103289d08/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-runtime-class="LmsRuntime" data-usage-id="block-v1:MITx+22.011x+3T2018+type@vertical+block@9b7922fb18cc47f190e8c35206532ca1" data-init="VerticalStudentView" data-runtime-version="1" data-course-id="course-v1:MITx+22.011x+3T2018" data-block-type="vertical" data-has-score="False" data-graded="True" data-request-token="64445f9efe0b11ee9b5e16fff75c5923">
<h2 class="hd hd-2 unit-title">1.2.3. Required Assessment</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@e298c63fc0aa441d8ec157467b7eb967">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-runtime-class="LmsRuntime" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@e298c63fc0aa441d8ec157467b7eb967" data-init="XBlockToXModuleShim" data-runtime-version="1" data-course-id="course-v1:MITx+22.011x+3T2018" data-block-type="problem" data-has-score="True" data-graded="True" data-request-token="64445f9efe0b11ee9b5e16fff75c5923">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_e298c63fc0aa441d8ec157467b7eb967" class="problems-wrapper" role="group"
aria-labelledby="e298c63fc0aa441d8ec157467b7eb967-problem-title"
data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@e298c63fc0aa441d8ec157467b7eb967" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@e298c63fc0aa441d8ec157467b7eb967/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="e298c63fc0aa441d8ec157467b7eb967-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@e298c63fc0aa441d8ec157467b7eb967-problem-progress" tabindex="-1">
Assessment 1
</h3>
<div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@e298c63fc0aa441d8ec157467b7eb967-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_e298c63fc0aa441d8ec157467b7eb967_2_1">
<fieldset aria-describedby="status_e298c63fc0aa441d8ec157467b7eb967_2_1 description_e298c63fc0aa441d8ec157467b7eb967_1_1">
<legend id="e298c63fc0aa441d8ec157467b7eb967_2_1-legend" class="response-fieldset-legend field-group-hd">A characteristic x-ray may be emitted from an atom immediately following which type(s) of radioactive decay? Do not count multi-stage decays.</legend>
<p class="question-description" id="description_e298c63fc0aa441d8ec157467b7eb967_1_1">Select all that apply</p>
<div class="field">
<input type="checkbox" name="input_e298c63fc0aa441d8ec157467b7eb967_2_1[]" id="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="e298c63fc0aa441d8ec157467b7eb967_2_1-choice_0-label" for="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_e298c63fc0aa441d8ec157467b7eb967_2_1 description_e298c63fc0aa441d8ec157467b7eb967_1_1"> Alpha decay
</label>
</div>
<div class="field">
<input type="checkbox" name="input_e298c63fc0aa441d8ec157467b7eb967_2_1[]" id="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="e298c63fc0aa441d8ec157467b7eb967_2_1-choice_1-label" for="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_e298c63fc0aa441d8ec157467b7eb967_2_1 description_e298c63fc0aa441d8ec157467b7eb967_1_1"> Beta-minus (electron) decay
</label>
</div>
<div class="field">
<input type="checkbox" name="input_e298c63fc0aa441d8ec157467b7eb967_2_1[]" id="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="e298c63fc0aa441d8ec157467b7eb967_2_1-choice_2-label" for="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_e298c63fc0aa441d8ec157467b7eb967_2_1 description_e298c63fc0aa441d8ec157467b7eb967_1_1"> Beta-plus (positron) decay
</label>
</div>
<div class="field">
<input type="checkbox" name="input_e298c63fc0aa441d8ec157467b7eb967_2_1[]" id="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="e298c63fc0aa441d8ec157467b7eb967_2_1-choice_3-label" for="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_e298c63fc0aa441d8ec157467b7eb967_2_1 description_e298c63fc0aa441d8ec157467b7eb967_1_1"> Gamma decay
</label>
</div>
<div class="field">
<input type="checkbox" name="input_e298c63fc0aa441d8ec157467b7eb967_2_1[]" id="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="e298c63fc0aa441d8ec157467b7eb967_2_1-choice_4-label" for="input_e298c63fc0aa441d8ec157467b7eb967_2_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_e298c63fc0aa441d8ec157467b7eb967_2_1 description_e298c63fc0aa441d8ec157467b7eb967_1_1"> Spontaneous fission
</label>
</div>
<span id="answer_e298c63fc0aa441d8ec157467b7eb967_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_e298c63fc0aa441d8ec157467b7eb967_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Assessment 1" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_e298c63fc0aa441d8ec157467b7eb967" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_e298c63fc0aa441d8ec157467b7eb967">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="e298c63fc0aa441d8ec157467b7eb967-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="e298c63fc0aa441d8ec157467b7eb967-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="e298c63fc0aa441d8ec157467b7eb967-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@9cfcd4a9084b49dc831092fb61f5e55d">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-runtime-class="LmsRuntime" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@9cfcd4a9084b49dc831092fb61f5e55d" data-init="XBlockToXModuleShim" data-runtime-version="1" data-course-id="course-v1:MITx+22.011x+3T2018" data-block-type="problem" data-has-score="True" data-graded="True" data-request-token="64445f9efe0b11ee9b5e16fff75c5923">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_9cfcd4a9084b49dc831092fb61f5e55d" class="problems-wrapper" role="group"
aria-labelledby="9cfcd4a9084b49dc831092fb61f5e55d-problem-title"
data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@9cfcd4a9084b49dc831092fb61f5e55d" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@9cfcd4a9084b49dc831092fb61f5e55d/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="9cfcd4a9084b49dc831092fb61f5e55d-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@9cfcd4a9084b49dc831092fb61f5e55d-problem-progress" tabindex="-1">
Assessment 2
</h3>
<div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@9cfcd4a9084b49dc831092fb61f5e55d-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_9cfcd4a9084b49dc831092fb61f5e55d_2_1">
<fieldset aria-describedby="status_9cfcd4a9084b49dc831092fb61f5e55d_2_1 description_9cfcd4a9084b49dc831092fb61f5e55d_1_1">
<legend id="9cfcd4a9084b49dc831092fb61f5e55d_2_1-legend" class="response-fieldset-legend field-group-hd">A primordial nuclide...</legend>
<p class="question-description" id="description_9cfcd4a9084b49dc831092fb61f5e55d_1_1">Select all that apply</p>
<div class="field">
<input type="checkbox" name="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1[]" id="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="9cfcd4a9084b49dc831092fb61f5e55d_2_1-choice_0-label" for="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_9cfcd4a9084b49dc831092fb61f5e55d_2_1 description_9cfcd4a9084b49dc831092fb61f5e55d_1_1"> Has a short half life
</label>
</div>
<div class="field">
<input type="checkbox" name="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1[]" id="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="9cfcd4a9084b49dc831092fb61f5e55d_2_1-choice_1-label" for="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_9cfcd4a9084b49dc831092fb61f5e55d_2_1 description_9cfcd4a9084b49dc831092fb61f5e55d_1_1"> Has a long half life
</label>
</div>
<div class="field">
<input type="checkbox" name="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1[]" id="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="9cfcd4a9084b49dc831092fb61f5e55d_2_1-choice_2-label" for="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_9cfcd4a9084b49dc831092fb61f5e55d_2_1 description_9cfcd4a9084b49dc831092fb61f5e55d_1_1"> Is found naturally occurring on earth
</label>
</div>
<div class="field">
<input type="checkbox" name="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1[]" id="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="9cfcd4a9084b49dc831092fb61f5e55d_2_1-choice_3-label" for="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_9cfcd4a9084b49dc831092fb61f5e55d_2_1 description_9cfcd4a9084b49dc831092fb61f5e55d_1_1"> Is stable (does not undergo radioactive decay)
</label>
</div>
<div class="field">
<input type="checkbox" name="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1[]" id="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="9cfcd4a9084b49dc831092fb61f5e55d_2_1-choice_4-label" for="input_9cfcd4a9084b49dc831092fb61f5e55d_2_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_9cfcd4a9084b49dc831092fb61f5e55d_2_1 description_9cfcd4a9084b49dc831092fb61f5e55d_1_1"> Must be produced in a nuclear reactor
</label>
</div>
<span id="answer_9cfcd4a9084b49dc831092fb61f5e55d_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_9cfcd4a9084b49dc831092fb61f5e55d_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Assessment 2" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_9cfcd4a9084b49dc831092fb61f5e55d" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_9cfcd4a9084b49dc831092fb61f5e55d">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="9cfcd4a9084b49dc831092fb61f5e55d-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="9cfcd4a9084b49dc831092fb61f5e55d-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="9cfcd4a9084b49dc831092fb61f5e55d-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
© All Rights Reserved