Question

For each of the pairs of elements below give the formula for the simplest compound to be formed from them and explain the basis of your decision and note if the bond(s) formed are ionic or covalent.

a) sodium and fluorine

b) nitrogen and hydrogen

c) silicon and oxygen

d) chlorine and bromine

You don't have to do all of them just do
one or two so I can do the rest.

Thank you so much!!!!

Answer 1

Na is in group I. F is in group VII (or 17 depending on the system your instructor is using) so F is -1. So the formula is NaF. NaF is ionic.

N and H. N is in group V so it needs three electrons. H is in group I so it has 1 e. So the formula is NH3. NH3 is covalent.