Question

In class 11 Chemistry there is something like 1 a 2a 3A 4A 5a 6a 78 8 a and there are some elements mentioned under each.... Are 1A 2a and so on are subdivisions or they themselves are groups???? Is it a Periodic Table I feel everything new in this... Is it a Periodic Table I feel everything new in this..

Answer 1

Hey ur answer would be this
They are the periodic table elements along with which transition elements too come

Answer 2

Answer:

They themselves are groups.

Explanation:

If you check the periodic table, the first two columns are 1a and 2a, and columns 13-18 are 3a to 8a. In the middle for columns 3-12 (transition metals), columns 3-7 is 3b to 7b, columns 8-10 is 8b, columns 11-12 is 1b-2b.