Questions about the periodic table....?

Question

1. What information is provided by the specific block location of an element?

2. What signs are associated with electon affinity values, and what is the significance of each sign?

3. How does the size oif a cation and an anion compare with the size of the neutral atom from which it is formed?

4. How do the values of successive ionization energies compare?
- Why does this occur?

5. Why do halogens readily form 1- ions?

Answer 1

s p d f blocks tell which set of orbitals are the last to fill for those elements.

+ or - depending on whether it will lose or gain an e-

cations are smaller than atoms b/c they lose e-
anions are larger than atoms b/c they gain e-

each successive ionization energy gets higher becasue the #protons is more and more unbalanced by # e-

halogens have 7 valence e- and noble gases have 8. by gaining one e- the halogens now have the e- configuration of a noble gas and are more stable. gain 1 e- = 1- charge

Answer 2

yes ur right -3 is the answer becoz all the elements in group 5A and the nitrogen is monatomic in 5A they have a 5 valence electrons