CH.4 Chemical Bonding

Question 1

co-ordinate bond

Answer 1

the sharing of a pair of electrons between two atoms where both the electrons in the bond come from the same atom.

Question 2

state bond angle and shape when there is two bond pairs

Answer 2

180, linear

Question 3

state bond angle and shape when there is three bond pairs

Answer 3

120, trigonal planar

Question 4

state bond angle and shape when there is four bond pairs

Answer 4

109.5, tetrahedral

Question 5

state bond angle and shape when there is five bond pairs

Answer 5

120, 90 , trigonal bipyramidal

Question 6

state bond angle and shape when there is six bond pairs

Answer 6

90, octahedral

Question 7

state bond angle and shape when there is one lone pair and three bond pairs

Answer 7

107, pyramidal

Question 8

state bond angle and shape when there is two lone pair and two bond pairs

Answer 8

104.5, non-linear v shaped

Question 9

electronegativity

Answer 9

the power of a particular atom that is covalently bonded to another atom to attract the bonding pair of electrons towards itself

Question 10

Factors influencing electronegativity

Answer 10

1.nuclear charge
2.atomic radius
3.shielding

Question 11

Bond energy

Answer 11

the energy required to break one mole of a particular covalent bond in the gaseous
state

Question 12

Bond length

Answer 12

The internuclear distance of two covalently bonded atoms