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A planet that has phases like those of the moon is
Protons
Positively charged particles found within the nucleus of an atom, integral to the chemical identity and properties of an element.
Neutrons
Subatomic particles found in the nucleus of an atom, with no electric charge and a mass slightly greater than that of protons.
Lewis Structure
A diagram that represents the valence electrons of atoms within a molecule, illustrating the bonding between atoms and the existence of lone pairs of electrons.
Acetic Acid
A weak, organic acid that gives vinegar its characteristic smell and sour taste; used as a chemical reagent.
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