Question

I
7
Group
Pucaidd
c
3
А A
B
atomie
СЕР
que masons.
element U is a metal
Element B ott has
size than a
(c) rtement
C has valan
valanc
1​

Answer 1

Answer:

valance of electron is 1

Answer 2

Answer:

valance is 1..........