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19 Cards in this Set

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  • Back
Ionic bonds
loss and gains: Atoms form bonds with other atoms by using electrons in their outermost enrgy level. Four ways to do this; gaining, losing, sharing, or pooling
Ionic bons
bonds that involve the transfer of electrons through giving and receiving
A question of balance: an ion is a charged atom. if an atoms gives an electron its pausitive, if it recieves an electron its negative
bond formation
ionic bonds are created through the attraction of ions, or opositely charged atoms through the giving and receiving of electrons
is a pure substance containing two or more elements that are chemically bonded
metalic Bonding-Pooling
these are created when metals bond with metals. Valence electrons are loose and can be shared with all atoms in the bond. this pooling of electrons holds atoms together
convalent Bonds- Shairing
some elements have a tendency to share electrons one family that has this temdency is family 14
convalent bonds
a bond created when elements share electrons. this creates an attraction of the shared electrons to both nuclei
molecular compounds are convalently bared compounds
a neutral particle formed when atoms share electrons- molecules do not consist of ions because electrons are not lost or gained
double and Triple bonds
when elements share more than 1 electron
double bonds
when two pairs of electrons are shared
Polar and nonpolar molecules
atoms can share electrons unevenly
polar bond
is a bond where electrons are shared unevenly
these polar bonds cause one side of the molecule to be more negative
polar water molecule
oxygen has a greater share of electrons as an H2O bond. the oxygen end takes a negative charge while the hydrrogen end takes a pausitive. Simular to poles
nonpolar molecules
do not have this charge, which occurs between bonds of the same element like diatomic elements
chemical shorthand
alchemists were the first to explore chemistry and they developed symbols for the elements which are no longer used
symbols for the atoms
tend to be a letter or two letters from an element's Latin naem
chemical formulas
consist of numbers and chemical symbols to represent what compunds and elements are present
oxidation number
the number of electrons an atom gains, losses, or shares during a chemical reaction