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Mrs.Irving's Bio

Chapter 3 terms Part 1

TermDefinition
molecule a substance that cannot be separated into other kinds of substances
chemical bond the force that holds together the atoms in a molecule or compound
chemical property a characteristic of an object that describes how that object changes into a different substance
electron a subatomic particle found outside of the nucleus that has a negative charge
atomic mass the average mass of an atom of an element
atom the basic unit of matter
covalent a type of bond that forms when one or more pairs of electrons are shared between two atoms
proton a subatomic particle found in the nucleus that has a positive charge
acid any substance that can donate a proton (H+) or accept an electron pair
neutral solution has a pH of 7, neither acidic nor basic
atomic number the number of protons in an atom's nucleus
chemical formula tells the number of atoms and the kinds of atoms in a compound
chemical reaction elements are combined or rearranged
Created by: romperroomqueen