Question

in periodic table group A and b with the same group are present in​

Answer 1

Answer:

I don't know what you want to know

Answer 2

Answer:

hope it helps you dude........xd dude...........xd

Explanation:

Calcium (Ca) is in group 2, for it contains two valence electrons. In the old IUPAC system the letters A and B were designated to the left (A) and right (B) part of the table, while in the CAS system the letters A and B are designated to main group elements (A) and transition elements (B).