C2 Structure And Bonding

Question 1

Ionic substances can not conduct electricity unless…

Answer 1

They are molten or in solution (aq)

Question 2

Metals can conduct electricity: True or False?

Answer 2

True. They can also conduct thermal energy.

Question 3

Why can ionic substances only conduct electricity when molten or in solution?

Answer 3

When aqueous, ions move place to place and are free to carry a charge.

Question 4

Ionic substances have high melting and boiling points because…

Answer 4

They contain strong ionic bonds, which require more energy to overcome.

Question 5

Do metals have high or low melting and boiling points?

Answer 5

High

Question 6

Why do metals have high melting and boiling points?

Answer 6

Metallic bonds are strong and require lots of energy to overcome.

Question 7

Alloys are stronger than metals: True or False?

Answer 7

True. Alloys are much stronger.

Question 8

What type of bonding was NON-METAL + NON-METAL?

Answer 8

Covalent

Question 9

What type of bonding was METAL + METAL?

Answer 9

Metallic

Question 10

What type of bonding was METAL + NON-METAL?

Answer 10

Ionic

Question 11

Do ionic bonds have high or low melting points?

Answer 11

High melting/boiling points - strong electrostatic attraction between oppositely charged ions

Question 12

Can ionic bonds conduct electricity?

Answer 12

Only when molten or in solution

Question 13

What happens during ionic bonding?

Answer 13

Electrons are transferred to gain full outer shells

Question 14

Which ions are attracted to each others?

Answer 14

Oppositely charged ions - electrostatic attraction

Question 15

What substances are ionic bonds found in?

Answer 15

Ionic compounds

Question 16

What are ionic bonds held together by?

Answer 16

Electrostatic attraction between oppositely charged ions

Question 17

What are ionic compounds?

Answer 17

Consist of a regular arrangement of positive and negative ions

Question 18

When are giant ionic structures/lattices formed?

Answer 18

Formed by oppositely charged ions being attracted together

Question 19

What type of compounds contain covalent bonding?

Answer 19

Covalent compounds

Question 20

What is a covalent bond?

Answer 20

When electrons are shared to gain full outer shells

Question 21

What do covalent bonds result in?

Answer 21

Simple molecular or giant covalent structures

Question 22

What is the name of group 1 elements?

Answer 22

Alkali metals

Question 23

What is the charge of group 1 on the periodic table?

Answer 23

+1

Question 24

What is the name of the group 2 elements?

Answer 24

Alkaline Earths

Question 25

What is the charge of group 2 on the periodic table?

Answer 25

+2

Question 26

What is the charge of group 7 on the periodic table?

Answer 26

-1

Question 27

What is the name of group 7 on the periodic table?

Answer 27

Halogens

Question 28

What is the name of group 0 on the periodic table?

Answer 28

Noble Gases

Question 29

What is the charge of group 0 on the periodic table?

Answer 29

0

Question 30

What is the charge of group 6 on the periodic table?

Answer 30

-2

Question 31

What is the charge of atoms which gain electrons?

Answer 31

Atoms which gain electrons have a negative charge - reduced

Question 32

What is the charge of atoms which lose electrons?

Answer 32

Atoms which lose electrons have a positive charge - oxidised

Question 33

What is metallic bonding?

Answer 33

Involves electrons being delocalised

Question 34

What elements feature metallic bonding?

Answer 34

Metals

Question 35

What does metallic bonding result in?

Answer 35

Giant metallic structures

Question 36

What do metals consist of?

Answer 36

A regular arrangement of positive ions in a sea of delocalised electrons

Question 37

Why are metals malleable (what holds them together)?

Answer 37

Held together by delocalised electrons makes it malleable

Question 38

What are metallic structures held together by?

Answer 38

Strong electrostatic forces caused by this arrangement

Question 39

Do metals have high/low boiling points?

Answer 39

High melting/boiling points

Question 40

Why do metals have high melting and boiling points?

Answer 40

Lots of energy required to overcome these electrostatic forces

Question 41

Why do metals conduct electricity?

Answer 41

They contain free delocalised electrons which move around and carry a charge

Question 42

What do ionic bonds consist of?

Answer 42

Strong electrostatic attraction between oppositely charged ions