mineral

Answer:

any naturally occurring inorganic solid that possesses and orderly crystalline structure and can be represented by a chemical formula.

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atoms

Answer:

the smallest particles that cannot be chemically split.

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nucleus

Answer:

centrally located part of the atom that holds protons and neutrons.

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protons

Answer:

positively charged particles located in the nucleus.

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neutrons

Answer:

the particles of the nucleus that have no charge.

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electrons

Answer:

negatively charged particles found outside the nucleus.

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valence electrons

Answer:

The electrons in the outermost shell (main energy level) of an atom; these are the electrons involved in forming bonds.

atomic number

Answer:

the number of protons in the nucleus.

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element

Answer:

a group of the same kind of atoms.

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periodic table

Answer:

a tabular arrangement of the chemical elements according to atomic number as based on the periodic law