Examlex
The CPU and memory of a computer are housed in the same box call the _____ unit.
Mass Number
The total number of protons and neutrons in the nucleus of an atom, which determines its atomic mass.
Protons
Particles with a positive charge found in the nucleus of an atom, playing a role in the atom's mass and total charge.
Neutrons
Subatomic particles found in the nucleus of an atom, with no electric charge and a mass slightly larger than that of protons.
Solvent
A substance that dissolves a solute, resulting in a solution; usually a liquid but can also be a solid or gas.
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