Question

6. The atomic number of elements A, B, C, D and E are given below Element A B C D EAtomic no. 7 10 12 41 9From 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

A). The elements which are chemically similar are A and E
B). The inert gas is B
C). The element is C
D). The elements are C and D

Answer 2

How a and e are similar chemicall properties