Valence electrons | Quantum Theory and Atomic Structure

General Chemistry 1 - Valence electrons

1) What would be the outer electron configuration of group VIA (O, S, Se, …)?

2) What is the group of an element with the outermost electron configuration nsnp2?
Give an example of an atom in this group.

1) ns2np4

2) Group IVA ⇒ carbon, silicon, germanium, tin, lead