Chemistry revision - bonding

What type of elements can react using covalent bonding?

• metals only

• non-metals only

• metals and non-metals together

• any element can react

What type of force holds the atoms together in all of the different types of bonding?

• ionic bonding

• intermolecular forces

• electrostatic forces of attraction

• electromagnetic forces

Define ionic bonding.

• when atoms share electrons so both atoms have a full outer shell

• when atoms lose electrons so both atoms have a full outer shell

• when atoms swap electrons so both atoms have a full outer shell

• when atoms gain electrons so both atoms have a full outer shell

What type of elements can react using ionic bonding?

• metals only

• non-metals only

• metals and non-metals together

• any element can react

Define metallic bonding.

• the electrostatic force of attraction between two metals

• the electrostatic force of attraction between the positive ions and delocalised electrons

• the electrostatic force of attraction between the positive and negative ions

• the metallic bonding in a metal due to intermolecular forces

Explain why metals can conduct electricity.

• metals have delocalised electrons that are free to move

• metals have delocalised ions that are free to move

• metals have ions that are free to move

• metals have atoms that are free to move

Why are metals malleable?

• the layers of atoms are arranged in a regular structure and can slide over each other

• the atoms have different sizes so they can slide over each other

• the atoms are arranged in an irregular structure and slide over each other in certain directions

• the layers of atoms are arranged in an irregular structure and can slide over each other

Why are alloys stronger than pure metals?

• alloys have lots of different elements interacting with each other

• alloys have lots of covalent bonds between the different atoms

• pure metals have metallic bonding between the different metals which is very strong

• the atoms have different sizes so the alloy has an irregular structure and the layers can't slide over each other

Why will group 2 metals have a higher melting point than group 1 metals?

• group 2 elements have more ionic bonding than group 1

• group 2 exhibits stronger covalent bonds between the metals

• group 2 exhibits stronger electrostatic forces of attraction between the higher charge of the ion and the delocalised electrons

• group 2 has more protons and neutrons which requires more energy to break apart

Why will group 2 metals be better electrical conductors than group 1 metals?

• they have twice as many delocalised electrons

• they have twice as many ions that are free to move

• they have stronger metallic bonding which helps conductivity

• they have more protons and electrons than group 1