unit 5 flashcards Flashcard

compound
a chemical combination of 2 or more different elements in a fuxed ratio
chemical bond
the force that holds atoms together
ionic bond
bond formed by transfering electrons from a metal to a nonmetal
covalent bond
bond fprmed by sharing electrons nonmetal bonds to nonmetal
oxidation number
the positive or negative charge of an ion
cation
positively charged atoms
anions
negatively charged atoms
positive ions
form when atoms lose electrons
negative ions
form whe valance electrons are added to an atom
ionization energy
easily an atom loses electrons
electron affinity
how much atraction an atom has for electrons
ion
a charged particle
polyatomic ion
an ion made up of two or more elements covalentlybonded
transiyion metal
one of the elements in columns in 3 through 12 of the periodic table, the area in the periodic.
subscript
the small characters set below the normal letters or figures
subscript
the small characters set below the normal letters or figures
conductivity
measure of the ability of watr to conduct electrical current.It is directly related to the total dissolved substancs in the water.

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