EARTH
Self Evaluation Test
You probably know the "routine" by now. Choose the best answer by selecting one of the buttons.
When you choose an answer you will get a "pop-up" response indicating whether you got it right or wrong. I suggest that the first time you take the test, you simply stick with your original answers, complete the test and submit it for a grade. This will give you an idea of what you have learned so far and is more like a "regular" test (whatever that is). Your answers will be graded and each one will be scored Correct or Wrong. Once you have the score and the list of incorrect answers you can use your "Back Button" to return to your exam and correct your errors. This time, this second time, you can carefully read each response, learn from it and choose the right answer. Students receiving a perfect score will be awarded a Certificate of Completion.
Important note : on some browsers (like some Internet Explorers) when you use the page down button to scroll down you will end up shifting your checked answer to the next one down the line! If that happens to you, use your mouse to scroll - not the keyboard.
The Table below shows the electronegativities of the Typical Elements. Use it to answer the following question.
The Table below shows the electronegativities of the Typical Elements. Use it to answer the following question.
EARTH 17 : Graphite, diamonds and fullerenes are ________________ of carbon.
allotropes
isotopes
metalloids
compounds
Below is a big view Periodic Table of the Typical Elements to help you answer this question.
EARTH 20 : Argon's 18 electrons are distributed as 1s2, 2s2, 2p6, 3s2, 3p6. Use that information and this Table to determine which electron distribution (below) is a short cut way of describing the electron distribution of nickel (Ni) - the tenth element in the 4th Period.
This is a difficult question so give it a lot of thought.
[Ar] 4s2, 4p6, 5s2
[Ar] 4s2, 4p8
[Ar] 4s2, 3d8
[Ar] 3d10
You can now submit your exam to Merlin for grading. If your answers were less than perfect you will receive a score and a list of Incorrect (and Correct) replies. Then you can use your "Back Button" to return to this page and correct your earlier errors. Once you have corrected all your earlier errors (by rechoosing a correct answer when you were told you are wrong), you will get a perfect score.
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