Answer the following questions.

What is the characteristic property of the element hydrogen?

The characteristic property of hydrogen:

Hydrogen has atomic number 1 and has 1 electron and 1 proton.

The element hydrogen has three isotopes and have different properties

First isotope is Protium which has 1 atomic mass.

Second isotope is Deuterium which has 2 atomic mass.

Third isotope is Tritium which has 3 atomic mass.

Note: Isotopes- In certain elements, some atoms have the same atomic number but different atomic mass number. Such atoms of an element are called isotopes of that element.