There are four different elements along with their atomic numbers: A (9), B (11), C (19) and D (37). Find the odd element from these with respect to their positions in the periodic table?
AD
BA
CC
DB
Answer:
B. A
Read Explanation:
Elements B, C, and D all belong to Group 1 (the alkali metals). Element A belongs to Group 17 (the halogens).
Therefore, the odd element with respect to their positions in the periodic table is A (Atomic Number 9)
Because it belongs to a different group than the other three elements.
