Atomic Structure Flashcards by Carter Anderson | Brainscape

Q

The smallest unit of an element

A

Atom

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Q

A subatomic particle that has a negative charge

A

Electron

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Q

In physical science, aton’s central region

A

Nucleus

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Q

A subatomic particle that has a positive charge

A

Proton

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Q

A subatomic particle that has no charge

A

Neutron

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Q

A region around the nucleus

A

Electron cloud

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Q

The numbers of protons in atoms

A

Atomic number

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Q

The total mass of protons and neutrons in a atom

A

Mass number

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