Question

2. The following table shows the positions of four elements A, B, C and D in the periodic
table.
Group
1 2 3
to
12
13
14
15
16
17
Period-!,
2
A
B
3
C
D
Using the above table answer the following questions.
i. Which element will form only covalent compounds?
ti. Which element is a metal with valency 2?
iii. Out of C and D which one has bigger atomic radius and why?
liunt in nissed through a glass prism?
Whether​

Answer 1

Answer:

Supply becomes greater than consumption