Types of Bonding

Question 1

How does making alloys make a metal stronger

Answer 1

The different sized atoms of the different elements distorts the regular arrangement of atoms, making it more difficult for the layers to slide over each other

Question 2

Valency

Answer 2

The combining power of an element (relating to the number of outer shell electrons

Question 3

Graphene properties

Answer 3

Exceptionally strong due to strong covalent bonds. Extremely light as it it only 1 atom thick. Used as electrical conductors due to electrons moving across the surface. Rolled into nanotubes

Question 4

Fullerene properties

Answer 4

Low melting point due to weak intermolecular forces which also make it soft and slippery. Individual molecules are strong due to strong covalent bonds between atoms. Conducts electricity due to delocalised electrons

Question 5

Ionic substances high MP

Answer 5

Strong electrostatic forces of attraction between positive cations and negative anions.