Question

Groups $\to$ Periods$\downarrow$	1	2	13	14	15	16	17	18
1	A
2			B	F			E	C
3	D

using the above table answer the following questions;
(a) Compare the atomic sizes of B & C.
(b) Select the letter/ letters which represents alkali metals.
(c) Identify the nature of bonds formed by elements of Group 1 and 14.
(d) would be the electronic configuration of element F?

Answer 1

(a) Compare the atomic sizes of B & C.
Size of B> C ( on moving left to right size decreases
(b) Alkali metals: A and D
(c) Bond formed : Covalent
(d) Electronic configuration: 2, 8, 4