Section 3
The Structure of the Atom
Book
Version 33
By Boundless
By Boundless
Boundless Chemistry
Chemistry
by Boundless
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.