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Ch 2.1 Vocab

TermDefinition
Atom The smallest basic unit of matter.
Element A pure substance made of only one type of atom that cannot be broken down into simpler substances by chemical means.
Proton A positively charged subatomic particle found in the nucleus of every atom.
Neutron An electrically neutral subatomic particle found in the nucleus of an atom, alongside protons.
Electron A subatomic particle with a negative charge that orbits the nucleus of an atom.
Isotope Atoms of the same element that have the same number of protons but a different number of neutrons.
Ion An atom or molecule that has gained or lost one or more elections, giving it a net electric charge.
Compound A substance formed when two or more different chemical elements are chemically joined together in a fixed ratio.
Molecule A group of two or more atoms held together by chemical bonds.
Ionic Bond A type of chemical bond formed by the electrostatic attraction between oppositely charged ions.
Covalent Bond A chemical bond that involves the sharing of one or more pairs of electrons between atoms to form stable molecules.
Created by: user-1964005
 

 



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