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Vocabulary week 8
Physical Science
10
Science
9th Grade
10/26/2015

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Term
Lewis Dot Structure
Definition
used to show bonds of atoms
Term
Ionic Bond
Definition
bond between a metal and a nonmetal of opposite charges where one atom transfers electrons to another atom.
Term
Valence Electrons
Definition
electrons on the outermost shell of an atom used to complete bonds between atoms.
Term
Molecule
Definition
a group of aotms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Term
metallic bond
Definition
bond between two metals
Term
covalent bond
Definition
bond between two nonmetals of the same charge where electrons are shared
Term
diatomic molecule
Definition
molecules composed only two atoms, of either the same or different chemical elements
Term
oxidation number
Definition
a number assigned to an element in chemcial combination that represents the number of electrons lost ( or gained, if the number is negative) by an atom of that element in the compund.
Term
Polar Bond
Definition
covalent bond between two atoms where the electrons forming the bond are unequally distributed.
Term
Non Polar Bond
Definition
  • A bond between 2 nonmetal atoms that have the same electronegativity and therefore have equal sharing of the bonding electron pair
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