| Term | Definition |
|---|
| ATOM | the smallest particle of any element that retains the properties of the element |
| ATOMIC NUMBER | the number of protons in the nucleus of an atom, which identifies the element to which the atom belongs |
| BOHR DIAGRAM | a diagram that shows the arrangment of an element's subatomic particles and the number of electron in each shell surrounding th nucleus of an atom |
| COMPOUND | a pure substance that is composed of two or more atoms chemically combined in a specific way |
| CONSERVATION OF MASS | the preservation of mass in a chemical reaction: the total mass of the products is always equal to the total mass of the reactants |
| COVALENT BONDING | the formation of a chemical bond between atoms through the sharing of one or more pairs of electrons |
| ELECTRON | subatomic partickles that have a 1 - (negative) electric charge |
| IONIC BONDING | compounds that are composed of positive ions and negative ions |
| IONS | electrically charged particles created when atoms gain or lose electrons |
| LEWIS DIAGRAM | a diagram that illustrates chemical bonding by showing only an atom's valence electrons and its chemical symbol |
| MASS NUMBER | the total number of protons and neutrons found in the nucleus of an atom |
| MOLECULE | a group of atoms in which the atoms are bound together by sharing one or more pairs of electrons |
| NEUTRON | subatomic particles that do not have an electric charge |
| POLYATOMIC | a molecular ion that carries a charge and is composed of more than one type of atom joined by covalent bonds |
| PROTON | subatomic partickles that have a 1+ (positive charge) electric charge |
| SYMBOLIC EQUATION | a set of chemical symbols and formulas that identify that reactants and products in a chemical reaction |
| VALENCE ELECTRON | the electrons in the valence shell of an atom |
Combine with other sets
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