Covalent Bonding

Question 1

covalent bond

Answer 1

the electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms

Question 2

lone pairs

Answer 2

pairs of outer shell electrons that are not involved in bonding

Question 3

how many covalent bonds does C form?

Answer 3

4

Question 4

how many covalent bonds does N form?

Answer 4

3

Question 5

how many covalent bonds does O form?

Answer 5

2

Question 6

how many covalent bonds does Cl form?

Answer 6

1

Question 7

what 3 ways can O fill its outer shell (bonding wise)

Answer 7

1. 2 single bonds
2. 1 double bond
3. 1 single bond and an extra electron

Question 8

what is it called when an atom has more than 8 electrons in its outer shell?

Answer 8

octet expansion

Question 9

dative bond

Answer 9

an electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms, where both electrons are provided by the same atom

Question 10

where to draw the extra electron in a dot and cross diagram for an ion?

Answer 10

on the outer shell of one of the atoms

Question 11

electron repulsion theory

Answer 11

electron pairs in the outer shell of the central atom in a molecule repel each other and arrange themselves to be as far apart as possible

Question 12

angle of a linear molecule

Answer 12

180

Question 14

angle of a trigonal planar molecule

Answer 14

120

Question 15

angle of a tetrahedral molecule

Answer 15

109.5

Question 16

angle of a octahedral molecule

Answer 16

90

Question 17

angle of a pyramidal molecule

Answer 17

107

Question 18

angle of a non-linear molecule

Answer 18

104.5

Question 19

how many degrees do lone pairs repel more than bonded pairs?

Answer 19

2.5

Question 20

shape of CO and CO2

Answer 20

linear

Question 21

shape of BF3

Answer 21

trigonal planar

Question 22

shape of SF6

Answer 22

octahedral

Question 23

shape of NH4 +

Answer 23

tetrahedral