Question
Chemistry Question on Hydrogen
Hydrogen has three isotopes: protium (1H), deuterium (2H or D) and tritium (3H or T). They have nearly same chemical properties but different physical properties. They differ in
A
Number of protons
B
Atomic number
C
Electronic configuration
D
Atomic mass
Answer
Atomic mass
Explanation
Solution
The correct answer is (D) : Atomic mass
1H, 2D and 3H have same atomic number but their atomic masses are different. Isotopes have same atomic number i.e. same number of protons.