Isotopes are atoms of the same element with different numbers of ______?

آاسوٹوپس ایک ہی عنصر کے ایٹم ______ کی مختلف تعداد کے ساتھ ہیں؟

Electrons

Protons

Neutrons

Positron

Atoms of the same element with different numbers of neutrons are called isotopes.
Atoms of the same element have the same number of protons and electrons but different numbers of neutrons.