Parts of An Atom

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Last updated 3:16 PM on 6/15/26
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13 Terms

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Proton

Positively charged part of an atom

<p>Positively charged part of an atom</p>
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Electron

Negatively charged part of an atom

<p>Negatively charged part of an atom</p>
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Neutron

Neutral part of an atom (no charge)

<p>Neutral part of an atom (no charge)</p>
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Nucleus

Center of an atom

<p>Center of an atom</p>
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Electron cloud

A region around the nucleus of an atom where electrons are likely to be found

<p>A region around the nucleus of an atom where electrons are likely to be found</p>
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A proton's charge

Positive

<p>Positive</p>
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An electron's charge

Negative

<p>Negative</p>
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What two subatomic particles are found in the nucleus?

Protons and neutrons

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A neutrons charge

None

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Electron

The smallest subatomic particle

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Atom

Building block of matter; contains subatomic particles: neutrons, protons, and electrons.

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an atom is made of

mostly empty space, with most of the mass of the atom in the nucleus

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Most of the mass of an atom is found in the...

nucleus (protons and neutrons), the electrons in the electron cloud, outside of the nucleus have very little mass