Bonding and structure

Question 1

Ionic bonding

Answer 1

Electrostatic attraction between productive and negative ions

Question 2

Covalent bond

Answer 2

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

Question 3

Linear

Answer 3

180

Question 4

Trigonal planar

Answer 4

120
3 around 1

Question 5

Bent

Answer 5

118
2 around one and a pair

Question 6

Pyramidal

Answer 6

107
3 around one and a lone pair

Question 7

Tetrahedral

Answer 7

109.5
4 around one

Question 8

Trigonal bipyramid

Answer 8

5 around one
90 and 120

Question 9

Octahedral

Answer 9

6 around one
90

Question 10

Density of ice compared to water

Answer 10

Ice is less dense compared to water due to hexagonal structure

Question 11

solid structure giant ions lattice from

Answer 11

oppositely charged ions strongly attracted in all directions

Question 12

surface tension of water

Answer 12

The water molecules attract one another due to the the hydrogen ends, which are positive in comparison to the negative ends of the oxygen cause water to “stick” together. This is why there is surface tension and takes a certain amount of energy to break these intermolecular bonds

Question 13

describe bonding in a crystal of iodine

Answer 13

covalent between atoms
van der Waals’ between molecules

Question 14

electronegativity

Answer 14

ability of an element to attract bonding electrons in a covalent bond