Answered: Where do the protons reside in an atom?

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter2: Atoms, Molecules, And Ions

Section: Chapter Questions

Problem 7E: How are protons and neutrons similar? How are they different?

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Where do the protons reside in an atom?

Expert Solution

Step 1-Introduction

An atom consists of a positively charged nucleus and negatively charged electrons. The atom is the smallest entity of a substance that is responsible for the observable chemical properties of the substance. atoms of a substance can be related to the mole quantity of the substance. For example, one mole of lithium has an Avogadro's number of atoms ( $6.023 \times 10^{23} a t o m s$ ).

Step 2-Protons, neutrons, and electrons

Answer: nucleus

The nucleus situates the center of an atom and consists of protons and neutrons. The electrons are surrounding the nucleus. The number of protons that belongs to an element can be determined directly from its atomic number. For example, the atomic number of helium is 2 and it has two protons in its nucleus.

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