Ionic Bonding

Question 1

What is an ion?

Answer 1

An atom with a positive or negative charge (caused by unequal number of protons and electrons)

Question 2

How are ionic bonds formed?

Answer 2

an electron is transferred from one atom to another. The ions are held together by electrostatic forces

Question 3

What is a cation?

Answer 3

A positive ion

Question 4

Are cations formed by loss or gain of electrons?

Answer 4

loss

Question 5

Which types of element form cations?

Answer 5

Metals

Question 6

What is an anion?

Answer 6

A negative ion

Question 7

Are anions formed by loss or gain of electrons?

Answer 7

gain

Question 8

Which types of element form anions?

Answer 8

non-metals

Question 9

What is the charge on ions from group 1?

Answer 9

+ (1 electron lost)

Question 10

What is the charge on ions from group 2?

Answer 10

2+ (2 electrons lost)

Question 11

What is the charge on ions from group 3?

Answer 11

3+ (3 electrons lost)

Question 12

What is the charge on ions from group 5?

Answer 12

3- (3 electrons gained)

Question 13

What is the charge on ions from group 6?

Answer 13

2- (2 electrons gained)

Question 14

What is the charge on ions from group 7?

Answer 14

• (1 electron gained)

Question 15

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

Answer 15

high

Question 16

Why do ionic compounds have high melting points?

Answer 16

There are strong electrostatic forces between ions

Question 17

Do ionic compounds conduct electricity?

Answer 17

yes as liquids or in solutions

Question 18

Why do ionic compounds conduct electricity as liquids or in solution?

Answer 18

Because the ions are free to move and carry a charge

Question 19

Why don’t ionic compounds conduct electricity as solids?

Answer 19

Because the ions are in fixed positions so cannot move to carry charges

Question 20

Are ionic compounds soluble or insoluble?

Answer 20

Usually soluble

Question 21

Which types of element form ionic bonds?

Answer 21

A metal with a non-metal