Question

For the symbol H, D and T tabulate three sub - atomic particle found in each of them.

Answer 1

Element	Symbols	Electrons	Protons	Neutrons
Hydrogen	H	1	1	0
Deuterium	D	1	1	1
Tritium	T	1	1	2

H, D and T are the three isotopes of hydrogen with same atomic number and different mass numbers of 1, 2 and 3 respectively.

Concept insight: Recall the mass numbers of each of the isotopes.