STRUCTURE

Question 2

structure of sodium chloride

Answer 2

ionic bonding
ionic lattice structure
high melting point
conducts electricity molten or in solution
strong attraction between oppositely charged ions

Question 3

structure of magnesium

Answer 3

metallic bonding
metallic lattice structure
high melting point
conducts electricity
malleable and ductile
attraction between ions and delocalised electrons

Question 4

structure of iodine

Answer 4

covalent bonding
molecular structure
brittle
low melting point
weak VDW forces between molecules

Question 5

structure of diamond

Answer 5

covalent bonding
macromolecular structure
hardest known substance
very high melting point
many strong covalent bonds

Question 6

structure of graphite

Answer 6

covalent bonding
macromolecular structure
soft and slippery
very high melting point
conducts electricity
covalent bonds between atoms in layers
weak VDW forces between layers

Question 7

structure of ice

Answer 7

covalent bonding
molecular structure
breaks easily
less dense than water
hydrogen bonds between molecules