For the representative elements, the number of valence electrons is the same as the _____.

For each of the following pairs of representative elements, indicate whether the first listed element has (1) more valence electrons, (2) fewer valence electrons, or (3) the same number of valence electrons compared to the second listed element.

(a) K, Ca

(b) O, S

(c) B, N

(d) Be, P 

What are the number of valence electrons and general valence electron configuration of the representative elements group (IA-8A)? Give a sample for each group and the specific valence electron configuration for the element.

What is the maximum number of valence electrons that a representative element/noble gas can possess, and which group of elements possesses this maximum number of valence electrons?