Chemistry Forum

PLEEEEAAAAASE look at my post on structure periodicity and chemical bonding!!!!!!!!!! I just need someone to go through and tell me right/wrong for each of them. I have to turn this in tomorrow, and I had a lot of trouble with it so I need someone to tell me so I can correct my mistakes. PLEASE!!!!!...

1. The general electron configuration for atoms of the halogen group is: my answer: ns^2np^7 2. Consider the element with the electron configuration [Kr]5s^24d^7. This element is: my answer: a transition metal 3. True/False: Cl- and S are isoelectronic: my answer: true 4. Arrange the following ions ...