C4

Question 1

What is ionic bonding?

Answer 1

The bonding between a metal and a non metal.

Question 2

What is covalent bonding? What does it involve?

Answer 2

Covalent bonding involves two non metal elements sharing an electron - not losing or gaining electrons.

Question 3

What are ions?

Answer 3

Ions are electrically charged particles formed when atoms lose or gain electrons.

Question 4

Do metal elements create a positive or negative ion?
AND
Do non metal elements create a positive or negative ion?

Answer 4

Metals form positive ions.

Non metals form negative ions.

Question 5

What is an ionic bond?

Answer 5

The strong electrostatic forces of attraction between oppositely charged ions.

Question 6

How can an atom become stable?

Answer 6

By gaining a full outer shell of electrons.

Question 7

“An atom with free electrons can conduct electricity”

TRUE OR FALSE.

Answer 7

True.

Question 8

How is a positive ion formed?

Answer 8

Through the loss of negative electrons.

Question 9

How is a negative ion formed?

Answer 9

As electrons are added to an element.

Question 10

What does the group of an element signify?

Answer 10

The number of electrons in the elements outer shell.

Question 11

What does the period of an element signify?

Answer 11

The number of shells it has.

Question 12

Why can’t ionic compounds conduct electricity in a solid? Why can they conduct electricity when in liquid or molten form?

Answer 12

In a solid the ions are not free to move whereas in a liquid the ions are free and can conduct electricity.

Question 13

What does OIL RIG mean?

Answer 13

Oxidation is loss; reduction is gain.

Question 14

Why is lithium less reactive than other group 1 metals?

Answer 14

Because the outer electron is closer to the nucleus than elements further down the group so the attraction to the nucleus is stronger so more energy is needed break the force of attraction and therefore less energy is released and the reaction is less violent.

Question 15

Give the name that group 1 metals are commonly given?

Answer 15

The Alkali Metals

Question 16

What is density of a metal?

Answer 16

How compact a substance is (hardness).

Question 17

What is metallic bonding?

Why does it happen? Explain.

Answer 17

A strong bond between metals that gives them a high melting and boiling point.
Since electrons are negative and metals contain positive ions there is a strong force of attraction between the delocalised sea of electrons and the positive metal ions - metallic bonding!

Question 18

TRUE OR FALSE

In a symbol equation Halides are always expressed in twos? (little number)

Answer 18

TRUE

Question 19

What happens in a displacement reaction?

Answer 19

The more reactive element will displace the less reactive element in a compound.

Question 20

Where are transition metals found on the periodic table?

Answer 20

In-between groups 2 and 3 in the middle of the periodic table.

Question 21

Which transition metal is used in the Haber process?

Which is used to make margarine?

Answer 21

Iron.

Nickel.

Question 22

Give one common use of transition metals?

Answer 22

Catalysts.

Question 23

TRUE OR FALSE

“Transition metals have very different properties to other metals”?

Answer 23

FALSE

They have similar properties to other metals.

Question 24

What do we use to test for thermal decomposition?

How can we tell if it has occurred?

Answer 24

We use LIMEWATER to test for thermal decomposition.

If it has went from clear to cloudy, and if the compound has changed colour, then thermal decomposition has occurred.