8-4 Quiz Flashcards
ionic bonds form…
hard and brittle crystals
ionic bonds have _____ melting points
high
why do ionic bonds have high melting points
they must break their strong attraction before melting
what bond conducts electricity
ionic
the crystals of ionic bonds have a ____ and _____ pattern
repeating and alternating
why don’t ionic crystals conduct electricity well unless in water
they must first dissolve to move freely
covalent bonds have ____ melting points
low
why do covalent bonds have low melting points
they are free to move
polar molecules have ____ attraction
partial
how to find transition metals oxidation number
by roman numeral
involves attraction of ions of opposite charges
ionic bonding
an atom or group of atoms that have a pos or neg charge
ions
occurs when valence electrons are gained or lost
ionic bonding
cation
positive ion
anion
negative ion
in ionic bonding metals will _____ electrons
lose
in ionic bonds nonmetals will ____ electrons
gain
metals will be stable like the _____ before them
noble gases
nonmetals become stable like the _____ after them
noble gases
metals on the
left
nonmetals on the
right
group of nonmetals that are covalent bonded together that have a charge
poly atomic bond
formed by nonmetlas sharing electrons
covalent bonds
can occur between the same elemenr or group of elements
covalent bonds
