Question

Isotopes of an element have ______.

विकल्प

• The same physical properties.

• Different chemical properties.

• Different numbers of neutrons.

• Different atomic numbers.

Answer 1

Isotopes of an element have different numbers of neutrons.

Explanation:

The isotopes of an element have the same number of protons (the same atomic number) but different numbers of neutrons, leading to different atomic masses.