covalent bonding Flashcards
1
Q
define covalent bond
A
the strong electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms
2
Q
what do covalent bonds form between?
A
two non-metals
3
Q
what do shorter covalent bonds tend to be and why?
A
stronger
- as the atoms are held closer together, so forces of attraction are greater , requiring more energy to overcome
4
Q
define average bond enthalpy
A
a measure of covalent bond strength
5
Q
what is a dative (coordinate) bond?
A
when both of the electrons in the shared pair are supplied from a single atom
