Structure and Bonding

Methane is a gas at room temperature because the bonds between the atoms are weak.

• T

• F

Ethane has a higher boiling point than methane because there are more bonds to break.

• T

• F

Carbon dioxide has a higher boiling point than methane because its atoms are held together by double bonds rather than single bonds.

• T

• F

Diamond has a high melting point because the atoms are all joined by covalent bonds in a lattice.

• T

• F

Diamond has a high melting point because there are strong covalent bonds between its molecules.

• T

• F

The metal is held together by the attraction between the copper ions.

• T

• F

Copper has a high melting point because there are strong forces of attraction between the copper ions and the free moving outer shell electrons.

• T

• F

The metal conducts electricity because the copper electrons are free to move.

• T

• F

Copper has a high melting point because there are lots of strong covalent bonds to break.

• T

• F

Copper can be bent because the layers of copper ions can slide relative to each other.

• T

• F