Question

The atomic number of elements A, B, C, D and E are given below

Element A B C D E

Atomic no. 7 10 12 41 9

From the above table, answer the following questions-

(a) Which two elements are chemically similar?

(b) Which is an inert gas?

(c) Which element belongs to 3rd period of periodic table?

(d) Which element among these is a non metal?

Answer 1

C

D

E is the non metal

Answer:

7 nd 14 same