Chemistry
Textbooks
Boundless Chemistry
Atoms, Molecules, and Ions
Chemistry Textbooks Boundless Chemistry Atoms, Molecules, and Ions
Chemistry Textbooks Boundless Chemistry
Chemistry Textbooks
Chemistry

Section 3

The Structure of the Atom

Book Version 33
By Boundless
Boundless Chemistry
Chemistry
by Boundless
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3 concepts
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Overview of Atomic Structure

Atoms are made up of particles called protons, neutrons, and electrons, which are responsible for the mass and charge of atoms.

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Atomic Number and Mass Number

The atomic number is the number of protons in an element, while the mass number is the number of protons plus the number of neutrons.

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Isotopes

Isotopes are various forms of an element that have the same number of protons, but a different number of neutrons.

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