CCEA GCSE Chemistry Unit 1 bonding, structure and properties overview quiz quiz

They are shared between atoms

They are transferred from a metal to a non-metal

They are delocalised in a sea

They are destroyed

+2

-1

-2

+1

It has no electrons

Its ions are fixed in the lattice and cannot move

It is a metal

It has weak bonds

A transfer of electrons

A shared pair of electrons between non-metal atoms

An attraction between ions and electrons

A bond between two metals

The covalent bonds are weak

Only weak intermolecular forces between molecules need to be overcome

They are ionic

They have delocalised electrons

2

3

4

6

It has ions free to move

Each carbon has one delocalised electron free to move

It has weak covalent bonds

It is a metal

Its covalent bonds are weak

Its layers are held by weak forces and can slide

It has no covalent bonds

It melts easily

Shared pairs of electrons

Attraction between positive ions and a sea of delocalised electrons

Attraction between positive and negative ions

Hydrogen bonds

Their ions are very small

Layers of ions can slide while the electron sea holds them together

They have no electrons

They are made of molecules

Its bonds are stronger

Different-sized atoms distort the layers so they cannot slide

It has more electrons

It is a compound

Pure copper

Steel

Sodium chloride

Diamond

1 to 100 micrometres

1 to 100 nanometres

1 to 100 millimetres

1 to 100 metres

They have a small surface area

They have a very large surface area to volume ratio

They are very heavy

They are ionic

They are too large to be useful

Their long-term effects on health and the environment are not fully known

They never react

They are always toxic