Question

write the names
(a) the period with electrons in the Shell K, L, and M
(b) the group with valency zero (c) the family of non-metals having valency one
(d) the metalloid in the second period
(e) the family of metals having valency two
(f) the family of metals having valency one ​

Answer 1

Answer:

(a) 3rd period

(b) no

(c) alkali metal

(d) berlyium

(e) alkaline metal

(f) alkali metal