Atoms & Bonding Flashcards
metals ___ valence electrons
lose
metals form _______ ions
positive
nonmetals have a ___ number of valence electrons
high
nonmetals ___ valence electrons
gain
nonmetals form _______ ions
negative
metals have a ___ number of valence electrons
low
what are ionic bonds formed by?
the transfer of valence electrons
ionic bonds form between
metals and nonmetals
covalent bonds are formed by atoms that
share valence electrons
covalent bonds form between
nonmetals
what is a diatomic element?
elements whose atoms form covalent bonds with another atom of the same element
how often do diatomic elements occur?
sets of two
metallic bonds form when ________
a common electron cloud surrounds the atoms
a physical combination of metals is called an
alloy
metallic bonds are very ______, ________, and ________.
flexible, malleable, & ductile.
