I am working on a pre-test and I need to find out if I am understanding things.  Here are a couple questions which I would appreciate if someone would tell me if I am not correct in my answers?

 

1. In order to reach a noble gas electron configuration, how many electrons would sulfur have to adopt?

 My answer: 6.  (Is noble gas electron configuration the same thing as ground-state configuration?)

 

2. How many valence shell electrons does aluminum have?

My answer: 3.  (Is the valence shell equal to the group #?)

 

3. Which atom is not oveying the octet rule?

My answer: ICl   (I came up with this answer because both I and Cl are able to expand their valence shell beyond the octet).  The answer choices are KBr, CO2, ClF3, ICl