Atomic Structure and Isotopes

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8 Terms

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Atom Definition

The smallest unit of matter that retains properties of a chemical element

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What is inside an atom?

Protons, neutrons, electrons

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What does the atomic number equal?

The number of protons in the nucleus

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What is a Neutral element?

When the number of protons = the number of electrons

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How do you find the number of neutrons?

Atomic mass - Protons

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What is the charge and mass of a neutron?

Mass of 1 amu

No charge

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What is the charge and mass of an electron?

Mass of 0

Charge of -1

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What is the charge and mass of a proton?

Mass of 1

Charge of 1