Question

The following table shows the position of 9 elements A, B, C, D.
E,F,G, H, I in the following periodic table:
1 2
Group
3 to 12
13
15
14
17
16
Period
2 A
B
H 1
G
3
F
Using the above table answer the following questions:
i) Which element is a metal with valency 2 ?
a) С
b)
c)
d)
AI​

Answer 1

Answer:

Could u maybe send a picture of your question? Not able to understand a thing of what u are actually trying to ask...