Question

In the following table the position of six elements A, B, C, D, E and F are given
(as they are in the modern periodic table)
Period → 1 2 3-12 | 13 | 14 | 15 | 16 | 17 | 18
Groups
|
C
D
BE
On the basis of the above table, answer the following question.
i) Name the element which form only covalent compounds
ii) Name the element which is a metal with valancy three.
iii) Name the element which is a non-metal with valency three.
iv) Out of B and C which one is having more atomic radius and why?​

Answer 1

Answer:

3-boron 1-carbon 2-lithium 4-

Answer 2

Answer:

hi bolo h r u ..............