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question 77

Multiple Choice

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Definitions:

Molecular Motion

The random movement of molecules in matter due to their kinetic energy; this motion increases with temperature.

Atomic Number

It is the number of protons found in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

Protons

Subatomic particles found in the nucleus of an atom, with a positive electric charge and contributing to the atomic number of an element.

Chemical Bonds

The attractive forces that hold atoms together to form molecules and compounds, including ionic, covalent, and hydrogen bonds.