Flashcards in 5.1 + 5.2 Deck (17):
Why are octets formed?
so atoms can be more stable
how are octets formed?
by sharing (covalent) or transferring of electrons (ionic)
nonmetals share electrons
metal electron transferred to nonmetal
what kinds of compounds are minerals?
what are sapphires and rubies made from?
tendency for atoms to obtain 8 valence electrons
what doesn't the octet rule apply to?
what makes noble gases stable?
it has an octet
Is helium stable?
yes, it is stable with valence electrons
formed by metals that lose electrons
formed by nonmetals that gain electron
what happens to the ending go anions?
it ends in -ide
state @ room temp?
consists of positive and negative ions
high melting and boiling points
solid @ room temperature
what kinds of attractive force do ionic compounds have?
chemical formulas of ionic bonds are written as:
cations first, then anions