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.