Atoms of an element having different mass numbers need to be named. Concept introduction: The total number of protons in an atom is said to be its atomic number . By using the total number of protons and neutrons all the atoms can be identified. Atomic number is denoted by “Z”. The total number of neutrons and protons of an atom is said to be its mass number. By using the total number of protons and neutrons all the atoms can be identified. Mass number is denoted by “A”. Isotope of an element differs in the neutron number. This means the difference lies in the mass number of atoms of an element. Atoms with different mass number but same atomic number is known as isotopes.

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Chapter 2, Problem 2.12QP

Interpretation Introduction

Interpretation:

Atoms of an element having different mass numbers need to be named.

Concept introduction:

The total number of protons in an atom is said to be its atomic number. By using the total number of protons and neutrons all the atoms can be identified. Atomic number is denoted by “Z”.

The total number of neutrons and protons of an atom is said to be its mass number. By using the total number of protons and neutrons all the atoms can be identified. Mass number is denoted by “A”.

Isotope of an element differs in the neutron number. This means the difference lies in the mass number of atoms of an element. Atoms with different mass number but same atomic number is known as isotopes.

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