The difference in isotopes of an element is __________.

Question

Question

This question was previously asked in

UP TGT Science 2019 Official Paper

Answer 1

Explanation:

Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons.
The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.

So, The difference in isotopes of an element is the mass number.Additional Information

Isotopes	Isomers	Isotones	Isobars
It is defined as the atoms which have the same number of protons (or same atomic number) but having different neutrons.	The two or more compounds having the same formula but a different arrangement of atoms in the molecule and different properties are called isomers.	The nuclei having an equal number of neutrons (A-Z) but different numbers of protons (Z) and different mass numbers (A) are called isotones	The nuclei which have the same mass number (A) but a different atomic number (Z) are called isobars.
Ex: ₁₇³⁵Cl and ₁₇³⁷Cl are isotopes of Cl.	Ex: butane and isobutane	Ex:¹⁶S, ³⁷Cl, ³⁸Ar, ³⁹K, and ⁴⁰Ca, they all have 20 neutrons.	Ex: ⁴⁰S, ⁴⁰Ar, ⁴⁰K and ⁴⁰Ca.