12 terms

Earth Science - Chemistry and Minerals

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Element
A substance that cannot be broken down into simpler substances
atomic number
the number of protons in the nucleus of an atom
energy level
a region of an atom in which electrons of the same energy are likely to be found
Isotope
Atoms of the same element that have different numbers of neutrons
mass number
the total number of protons and neutrons in the nucleus of an atom
Compound
A substance made up of atoms of two or more different elements joined by chemical bonds
chemical bond
The force that holds atoms together to form a compound
Ion
An atom or group of atoms that has a positive or negative charge.
ionic bond
A chemical bond resulting from the attraction between positively and negatively charged ions.
covalent bond
A chemical bond formed when two atoms share electrons
metallic bond
A bond formed by the attraction between positively charged metal ions and the electrons around them
mineral
A naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition
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