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Earth Science CH4

Across
One of two or more atoms that have the same number of protons but different numbers of neutrons
Has mass and takes up space
A subatomic particle that has a negative charge
Made of atoms and joined by chemical bonds
Formed when atoms share one or more parts of electrons
Smallest unit of a chemical
Down
Atom or molecules that gained or lost one or more electrons and has a negative or positive charge
Cannot be separated broken down
A subatomic particle that has no charge
Attractive force between oppositely charged ions
A subatomic particle that has a positive charge
Atoms held together by chemical forces
Combination of two or more substances that are not chemically combined
Homogeneous mixture throughout which two or more substances are uniformly dispersed