period 3 elements

Question 1

explain why magnesium has a higher melting point than sodium

Answer 1

higher charge (NOT NUC CHARGE)
more protons
then its not ab attraction to nucleus or whatev
Attracts delocalised / free / sea of electrons more strongly / metal–metal 1
bonding stronger / metallic bonding stronge

Question 2

give the formula of the species in a sample of solid phosphorus (v) oxide, state its structure and describe fully the bonding in this oxide

Answer 2

P4O10
molecular
covalent bonding
vdws BETWEEN MOLECULES

Question 3

sulfur (IV) oxide reacts with water to form a solution containing ions, write an equation for this

Answer 3

So2 + H2O–> H+ + HSO3-

ions is basicallly split into h+ and your other thing which is smth -

Question 4

trend in bps of halogens from fluorine to iodine

Answer 4

increases with size or mr more electrons stronger vdw between molecules harder to break require more energy to overcome