CHEM 1211 Section 2.2 (Nuclides and Their Symbols)

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10 Terms

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<p>Nuclide</p>

Nuclide

A species of atom characterized by the number of protons (atomic number, Z) and neutrons (mass number, A)

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Isotopes

Atoms of the same element that have the same atomic number but different mass numbers due to varying numbers of neutrons.

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Atomic Number (Z)

The number of protons in the nucleus of an atom, which determines the identity of the element.

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Mass Number (A)

The total number of protons and neutrons in an atom's nucleus.

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Ions

Charged particles formed when atoms gain or lose electrons.

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Anions

Negatively charged ions that have more electrons than protons.

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Cations

Positively charged ions that have more protons than electrons.

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Subatomic Particles

Particles that are smaller than atoms, including protons, neutrons, and electrons.

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Nuclide Symbol

A representation of an atom that includes the element's symbol, atomic number, mass number, and charge.

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Periodic Table

A tabular arrangement of elements organized by increasing atomic number and similar properties.