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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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The sum of the numbers of neutrons and protons is the ______.

Interpretation Introduction

Interpretation:

Interpret sum of number of neutron and number of proton.

Concept Introduction:

The atom consist nucleus and the electron. The nucleus of an atom consist proton and neutron and the electron is revolving around the nucleus. Mass number of an atom is equal to the sum of proton and neutron. Atomic number is equal to the number of proton or in ground state it is also equal to the number of electron.

Explanation

An atom with atomic mass and number of proton can be shown as Z XA.

Number of neutron = A – Z

Number of proton = Z

Sum

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