Atom A has a mass number 209 and atomic number 82.

Atom B has a mass number 209 and atomic number 83.


(i) How many protons atom A has?


(ii) How many protons atom B has?


(iii) Are atoms A and B isotopes of the same element?

(i) Atom A have 82 protons.

(ii) Atom B have 83 protons.


(iii) Both the atoms A and B are not the isotopes of same element.


53