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I am currently stuck on question 5 of the photo. I was hoping someone could help. The answers C but i cant work out why. Thanks in advance.
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Last edited by ayvaak; 24-05-2016 at 18:35.
- 24-05-2016 17:37
- 02-06-2016 18:31
B is in group 2 since there is a large jump in the third IE.
D is a noble gas because there are no large jumps in IE as all electrons are in the same energy level.
That leaves C.