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Matter: Step 8

Understands the structure of an atom

TermDefinition
Electrons Subatomic particles with a negative charge that are not part of the nucleus.
Group A vertical column in the periodic table. All elements have the same number of valence electrons and share properties.
Period A horizontal row in the periodic table.
Protons Subatomic particles with a positive charge that are part of the nucleus.
Neutrons Subatomic particles with no charge that are part of the nucleus.
Valence Electrons Electrons in the outer energy level. Those electrons participate in chemical reactions and determine bond type.
Nucleus The dense portion of an atom that contains protons and neutrons.
Created by: lcolumbia
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