Chemistry Fall Semester Review

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Atomic Mass

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The weighted average of the masses of the isotopes of an element.

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Subatomic Particles

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Particles smaller than an atom, including protons, neutrons, and electrons.

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Atomic Number

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

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Mass Number

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

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Electron Configuration

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The distribution of electrons in an atom's orbitals.

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Periodic Table Arrangement

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The periodic table is arranged in order of increasing atomic numbers.

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Atomic Radius Trend

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Atomic radius tends to decrease from bottom to top within a group on the periodic table.

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Isotopes

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Atoms of the same element that have different numbers of neutrons.

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Ionic Bonding

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A type of chemical bond formed through the transfer of electrons from one atom to another.

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Covalent Bonding

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A type of chemical bond formed when two atoms share electrons.