Atomic Stucture Flashcards by Isabella Craig

Q

Atom

A

The smallest unit of an element

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Q

Electron

A

Subatomic particle, negative charge

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Q

Electron cloud

A

Area around the neutrons contains atoms

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Q

Proton

A

A subatomic particle that has a positive charge

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Q

Mass number

A

The sum of numbers of protons and neutrons

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Q

Atomic number

A

The number of protons in the nucleus of an atom

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Q

Neutron

A

A subatomic particle that has no charge

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Q

Nurceuls

A

An atoms central region

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