An atom is the smallest bit of matter that isn't a sub-atomic particle. Minerals are made of atoms.
Sulfate minerals
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A Nitrogen atom shows the most similar properties to an Oxygen atom.
Atom
Inner planets are rock with minerals similar to those on Earth
a mineral
Any Lead Mineral, as well as Carbonate Minerals.
energy
Density
vitamins and minerals
All atoms are a fuzzy, indistinct shape.