JEE Main & Advanced
Chemistry
Structure of Atom / परमाणु संरचना
Question Bank
Atomic number, Mass number Atomic species
question_answer
The mass number of an anion, \[{{X}^{3-}}\], is 14. If there are ten electrons in the anion, the number of neutrons in the nucleus of atom, \[{{X}_{2}}\] of the element will be [MP PMT 1999]