quick quiz Flashcards
do the particles that take part in covalent bdoing hsve electrical charage ?
No they have no electric charge .
what two substances do covalent bonding ?
When non-metal atoms bond together .
What is a covalent bond ?
Shared pair of electrons
Draw energy level diagramm, stick ad dot cross diagram for H2
H-H one single covalent bodn for stick
difference wtih energy level and dot cross diagrams
- Dot cross diagrams onlys how electrons not energy levels .
- Stick diagram
How do we know the number of outer level elctrons ?
Whatever group it is in ,t hat is the number of otuer electrons it has .
-Order of otuershell eelctrons on each shell .
- 2
- 8
- 8
- 32
Why are covalnet bonds strong ?
Covalent bonds are strong because the shared electrons are attracted to the nucles of both atoms .
Examples of covalent bond substances
- Small molecules - water
- Large moelcules - Polymers
- Giant covalent structures - diamond
do covalnt bonds beak when heated
no
