Question

The position of three elements A B and C in in the periodic table is shown below.
Group16. Group17
---. ---
---. A
---. ---
B. C
Give reasons explain the following
a:-element a is a non metal
b:-element B has a larger atomic size than element C
c:-element C has a valency of 1

Answer 1

Answer:

1. 17 the group elements have valency 1. size goes on decreasing along the period.