Ionic Bonding

Question 1

What is the charge of metals in group 1?

Answer 1

+1

Question 2

What is the charge of metals in group 2?

Answer 2

+2

Question 3

What is the charge of metals in group 3?

Answer 3

+3

Question 4

What is the charge of non-metals in group 5?

Answer 4

-3

Question 5

What is the charge of non-metals in group 6?

Answer 5

-2

Question 6

What is the charge of non-metals in group 7?

Answer 6

-1

Question 7

What is the charge of Ag?

Answer 7

+

Question 8

What is the charge of Cu?

Answer 8

2+

Question 9

What are the charges of Fe?

Answer 9

-Fe2+
-Fe3+

Question 10

What is the charge of Pb?

Answer 10

2+

Question 11

What is the charge of Zn?

Answer 11

2+

Question 12

What is the charge of hydrogen?

Answer 12

+
(H+)

Question 13

What is the charge of hydroxide?

Answer 13

• (OH-)

Question 14

What is the charge of ammonium (NH4)?

Answer 14

+
(NH4+)

Question 15

What is the charge of carbonate?

Answer 15

2-
(CO3 2-)

Question 16

What is the charge of nitrate?

Answer 16

-
(NO3-)

Question 17

What is the charge of sulfate?

Answer 17

2-
(SO4 2-)

Question 18

Define ionic bonding:

Answer 18

Ionic bonding is the strong electrostatic attraction between positive and negative ions.

Question 19

Do compounds with giant ionic lattices have high or low melting and boiling points?

Why?

Answer 19

High, because of the strong electrostatic forces between them which take a great deal of energy to seperate.

Question 20

What is the difference between ‘ide’ and ‘ate’ at the ending of an ion?

Answer 20

‘ide’ means it contains those compounds only, ‘ate’ means there is oxygen (and possible other things) there as well.

Question 21

What form do ionic compounds tend to be in?

Answer 21

Crystalline.

Question 22

Why do ionic crystals tend to be brittle?

Answer 22

Any small distortion will bring ions with the same charge along side each other. Like charges repel so the crystalline splits itself.

Question 23

Ionic substances are soluble in what?

Answer 23

Water.

Question 24

Ionic compounds are insoluble in what?

Answer 24

Organic solvents.

Question 25

Can ionic compounds conducts electricity?

Answer 25

Not when they are solid, but yes when they are liquid (molten or an aqueous solution). This happens because ions become free to move around, but are in fixed positions and not free to move around when they’re solid.

Question 26

What word do you use instead of ‘electrons’ when explaining ionic conductivity?

Answer 26

Ions