Question

Any one plzzzz solve it​

Answer 1

11 atomic number and electronic configuration

12 these are isotopesof nitrogen I hope it is helpful to you please mark as brainliest

Answer 2

Here is yr Answr

11)Isotopes of the same element .Having different atomic masses but same atomic number

12)Isotopes.

13) Radioactive isotopes

plz mark as brainliest