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In the context of your question, the answer is: electron, proton, and neutron. Protons and neutrons make up the nucleus, and electrons 'orbit' the nucleus.

Modern subatomic theory is much more complex, although the simple view above is still of significant value, particularly in the electronic theory of chemistry. See "Atom" in Wikipedia for more.

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15y ago
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13y ago

Neutrons, Protons and Electrons.

A nucleus at the centre of the atom consists of neutrons (no charge and a mass of 1) and Protons (+1 charge and a mass of 1) and spinning around the nucleus are elcetrons (-1 charge and a relative Atomic Mass of 0).

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13y ago

an atom doesn't need certain elements, all it needs are proton neutrons and electrons. it varies on what element it's made of, aluminum, for example has a different amount of each than carbon

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14y ago

A typical atom has protons, neutrons and electrons.

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13y ago

nucleus,electron,and proton

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11y ago

proton neutrons and electorns

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Q: What are 3 elements that compose an atom?
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