1.2 - 5-10

Question 1

What is an ionic bond?

Answer 1

The electrostatic attraction between oppositely charged ions.

Question 2

What is a giant ionic lattice?

Answer 2

A three dimensional structure of oppositely charged ions, held together by strong ionic bonds.

Question 3

What is a covalent bond?

Answer 3

A bond formed by a shared pair of electrons.

Question 4

What is a lone pair?

Answer 4

An outer-shell pair of electrons that is not involved in chemical bonding.

Question 5

What is a dative covalent bond?

Answer 5

A shared pair of electrons which has been provided by one of the atoms only.

Question 6

Trigonal planar

Answer 6

120⁰

3 electron pairs

Question 7

Tetrahedral

Answer 7

109.5⁰

4 electron pairs

Question 8

Octahedral

Answer 8

90⁰

6 electron pairs

Question 9

Pyramidal

Answer 9

107⁰

1 lone pair, 3 bonded pairs

Question 10

Non-linear

Answer 10

104.5⁰

2 lone pairs and 2 bonded pairs

Question 11

Linear

Answer 11

180⁰

2 bonding regions

Question 12

What is a compound?

Answer 12

A substance formed from two or more chemically bonded elements in a fixed ratio, usually shown by a chemical formula.