Page 210 - Science Course 1 (Book 1)

Parts of an Atom Mo6-L3a: What are the Parts of an Atom?
Lesson 3

Neutron
In this topic, you will learn the following
lessons: a neutral particle in the nucleus of an atom.
Mo.6-L3a: What are the Parts of an Atom?
Mo.6-L3b: What Happens if There are Changes in Nuetron
an Atom?
Nucleus

+
+
Mo6-L3a What are the Parts of an Atom? +

Electron
KEY CONCEPTS: Proton
1. Where are protons, neutrons, and electrons located
in an atom?

Electron
Vocabulary A-Z a negatively charged particle that occupies the
Let us learn some vocabulary space in an atom outside the nucleus.

Electron

Nucleus

the region in the center of an atom where most
of an atom’s mass and positive charge is
concentrated. Proton

Electron
Neutron
Proton Electron Cloud
the region surrounding an atom’s nucleus where one
or more electrons are most likely to be found.
Nucleus

Electron Cloud
Proton
a positively charged particle in the nucleus of an
atom.

Proton

Electron Nucleus

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