In the following table, the positions of six elements A, B, C, D, E and F are given as they are in the Modern Periodic Table :
Group→
Period ↓ |
1 |
2 |
3-12 |
13 |
14 |
15 |
16 |
17 |
18 |
2 |
A |
|
|
B |
|
C |
|
|
D |
3 |
|
|
|
|
E |
|
|
|
F |
On the basis of the above table, answer the following questions :
(i) Name the element which forms only covalent compounds.
(ii) Name the element which is a metal with valency three.
(iii) Name the element which is a non-metal with valency three.
(iv) Out of B and C, whose atomic radius is bigger and why ?
(v) Write the common name for the family to which the
elements D and F belong.