Bonding 8 (covalent Bonds) Flashcards
You can indicate binding by two dots (cl:cl) or
A horizontal line (cl-cl)
Some atoms will form _ to complete their energy levels (becoming more stable)
Multiple covalent bonds
_ bonds occur when two atoms share four electrons
Double bonds
Double bonds occur when
Two atoms share four electrons
A triple bind occurs when two atoms share
Six electrons
_ occurs when two atoms share six electrons
A triple bond
A double bond on Lewis dot diagram is shown with two lines = a triple bond is shown with
Three lines
Oxygen (o2) forms a diatomic molecule with a
Double bond
Oxygen has _ valence electrons
Six
When oxygen shares _ electrons, it achieves an octet
Two (4 touching) (double bond)
A triple bind is formed in the compound _
Carbon dioxide
Carbon has _ valence electrons
Four
_ is also a triple bond
Nitrogen gas
Most atoms bond according to the octet rule but
There are some exceptions
Molecules in which one or more of the atoms have _ don’t bind according to the octet rule
Fewer than eight electrons
The _ rule only applies to hydrogen and helium
Duet
The duet rule only applies to (2)
Hydrogen
Helium
For helium and hydrogen, a full valence shell consists of only _ electrons
Two
Hydrogen and helium will bond with themselves to form diametric molecules with only
Two electrons
Hydrogen will bond with itself to have
Two electrons in its valence shell
Helium duet bond there are two electrons shared and
Two others not shared
Boron with 3 valence electrons bonds with
3 hydrogen atoms (6 valence electrons, no octet)
Boron combines with hydrogen to form
BH3
