Question

Which of the following groups of elements have properties that are most similar?
A. `Na,K,Cs`
B. `Mg,Sr,Ba`
C. `Be,Al,Ca`
D. `Be,Ra,Cs`

Answer 1

Correct Answer - A::B::C
The following group of elements show similar properties due to:
a. `Na,K,Cs` are elements of same group, i.e., alkali metals.
(b) `Mg,Sr,Ba` are elements of same group, i.e. group `2` or alkaline earth metals.
c. `Be` and `Ca` are of group `2` elements whereas `Be` and `Al` show similarities due to diagonal relationship.