Question

whata the period block and group in which elements with the following electron configuration is located?
a) [Ne] 3s^23p^4
b) [Kr] 4d^105s^25p^2
c) [Xe] 4f^145d^106s^26p^5

Answer 1

a) [Ne] 3s^2, 3p^4 shows (2+4)=6 valence electrons. That is Group VI (O, S, etc.) in the "p-block" (last 6 columns)

b) [Kr] 4d^10, 5s^2, 5p^2 shows (2+2)=4 valence electrons, Group IV (C, Si, etc.) in the "p-block"

(c) [Xe] 4f^14, 5d^10, 6s^2, 6p^5, 7 valence electrons. I will let you figure out the group and block.

Answer 2

for c is it grou VII and p-block?