group 1 (1A) group 3 (3B) group 16 (6A) group 18 (8A)
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which group on the periodic table contains elements that are the least reactive?
Possibilities:
- group 1 (1A)
- group 3 (3B)
- group 16 (6A)
- group 18 (8A)

group 18 (8A)