covalent bonding Flashcards
1
Q
what is covalent bonding?
A
form when two non-metal atoms share a pair of electrons
2
Q
characteristics of covalent bonding?
A
- are strong a lot of energy is needed to break them
- low melting and boiling points
- weak intermolecular forces between molecules, only
- a small amount of heat is required to separate the molecules
3
Q
what is single covalent bonding?
A
only one pair of electrons are shared between atoms
4
Q
what is multiple covalent bonding?
A
when there are two or more electron pairs are shared between two atoms
5
Q
what is dative covalent bonding?
A
when one atom gives both electrons in the bond
6
Q
what are polar covalent bonds?
A
have an unequal attraction for electrons so the sharing is unequal.
The unequal sharing of electrons leads to a separation of positive and negative electric charges
7
Q
characteristics of oxygen?
A
- gas at room temp
- low boiling point
- covalent bonds
- does not conduct electricity
8
Q
characteristics of hydrogen?
A
- gas at room temp
- low boiling points
- covalent bonds
- does not conduct electricity
9
Q
characteristics of water?
A
- liquid
- high boiling points
- covalent bonds
- does not conduct electricity
