ionic and molecular bonds Flashcards
which group have full valence shells?
8– noble gases
are noble gases found with or without other atoms?
alone
what is a full valence shell called?
a stable octet
full valence shells = _______
no reaction (stable)
all atoms what to achieve ______
stable octets
how do other atoms become stable octets?
forming bonds
how do atoms form bonds?
sharing or transferring electrons
what do ionic bonds form between?
metals and nonmetals
what happens in an ionic bond?
electrons transfer
which gives up electrons in an ionic bond?
metals
which take electrons in an ionic bond?
nonmetals
how are the atoms held together?
electrostatic attraction
step one for drawing ionic bonds:
draw the __________
Lewis Dot for the elements
step two for drawing ionic bonds:
use _____ to show _______
arrows / electron transfer
step three for drawing ionic bonds:
you may need to add _______
additional atoms
how is the new bond labelled?
metal, nonmetal-ide
what is another name for molecular bonds?
covalent bonds
what do covalent bonds form between?
two or more nonmetals
how are the atoms held together?
a covalent bond
step one for drawing covalent bonds:
draw the ______
Lewis Dot for the elements
step two for drawing covalent bonds:
line up _________ used in ______
2 electrons / sharing
step three for drawing covalent bonds:
count the ________ including the _______
electrons / shared pair
step four for drawing covalent bonds:
you may need to add _________
additional atoms
step five for drawing covalent bonds:
replace each ______ with _________
shared electron pair / single dash or line
one line = __________
one covalent bond