{"media":{"disableImageZooming":false},"answers":[{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"

Ba Xe Sn Sr Cs<\/div>\n"},{"correct":false,"tipsAndFeedback":{"chosenFeedback":"

Sorry, incorrect answer.\nXe is a noble gas. It has a filled outershell which imparts stability and therefore chemical inertness to the atom. It will resist any changes to that stability; therefore, it is not attracted to the electrons of other species; it has no EN. Sn, Sr, Ba, and Cs are metals; their EN's will be low because metals give away their outershell electrons; they do not attract electrons. Sn and Sr each have 5 energy levels; their outershells are closer to their nuclei than those of Ba and Cs, which each have 6 energy levels; thereofre their EN's will be greater. Sn has more protons than Sr; therefore it will have a greater nuclear attraction for the electrons of other species than Sr will. Ba has more protons than Cs; therefore it will have a greater nuclear attraction for the electrons of other species than Cs will.. \n<\/div>\n","tip":"","notChosenFeedback":""},"text":"

Xe Sn Sr Cs Ba<\/div>\n"},{"correct":false,"tipsAndFeedback":{"chosenFeedback":"

Sn Sr Cs Ba Xe<\/div>\n"},{"correct":false,"tipsAndFeedback":{"chosenFeedback":"

Sn Sr Xe Cs Ba<\/div>\n"},{"correct":false,"tipsAndFeedback":{"chosenFeedback":"

Right! Good job!\nXe is a noble gas. It has a filled outershell which imparts stability and therefore chemical inertness to the atom. It will resist any changes to that stability; therefore, it is not attracted to the electrons of other species; it has no EN. Sn, Sr, Ba, and Cs are metals; their EN's will be low because metals give away their outershell electrons; they do not attract electrons. Sn and Sr each have 5 energy levels; their outershells are closer to their nuclei than those of Ba and Cs, which each have 6 energy levels; thereofre their EN's will be greater. Sn has more protons than Sr; therefore it will have a greater nuclear attraction for the electrons of other species than Sr will. Ba has more protons than Cs; therefore it will have a greater nuclear attraction for the electrons of other species than Cs will.. \n<\/div>\n","tip":"","notChosenFeedback":""},"text":"

Sn Sr Ba Cs Xe<\/div>\n"}],"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"type":"auto","singlePoint":false,"randomAnswers":true,"showSolutionsRequiresInput":true,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"passPercentage":100,"showScorePoints":true},"UI":{"checkAnswerButton":"Check","submitAnswerButton":"Submit","showSolutionButton":"Show solution","tryAgainButton":"Retry","tipsLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","tipAvailable":"Tip available","feedbackAvailable":"Feedback available","readFeedback":"Read feedback","wrongAnswer":"Wrong answer","correctAnswer":"Correct answer","shouldCheck":"Should have been checked","shouldNotCheck":"Should not have been checked","noInput":"Please answer before viewing the solution","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again."},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"

Rank the following in order of decreasing EN (largest first--to the left). Explain.<\/p>\n\n

Ba Xe Sn Sr Cs<\/p>\n"}

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