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10 Cards in this Set

  • Front
  • Back
Molecule
when 2 or more atoms share electrons
Compound
a substance that contains 2 or more different elements
Ionic Bonds
when opposite charges ions are attached to each other
ex: NaCl
Ions
an atom that has gained or lost electrons & becomes (+) or (-) charged
ex: Na+, Cl-
Cations
a + charged ion
ex: na+
Anions
a - charged ion
ex: cl-
Covalent Bonds
when 2 or more atoms share electrons, much stronger that ionis bonds
ex: H2O
Nonpolar Covalent Bonds
2 atoms share electrons equally
Polar Covalent Bonds
1 atom attracts the shared electron more, causes partial (+)& (-) ends
Hydrogen Bonds
surface tension, water forms polar bonds, H is attracted to neighboring atoms