(a)[3]
For the silicon isotope $^{30}_{14}\text{Si}$, work out how many electrons, neutrons and protons are present in one atom of this isotope.
(b)[1]
When silicon is heated with nitrogen, silicon nitride, $\text{Si}_3\text{N}_4$, is formed. Write the equation for this reaction.
(c(i))[2]
State two ways in which the structures of silicon dioxide and diamond are alike.
(c(ii))[2]
Why does silicon dioxide have such a high melting point?
(d)[1]
Deduce the molecular formula for this compound.
(e)[1]
Draw a ‘dot-and-cross’ diagram for a silicon(IV) chloride molecule, $\text{SiCl}_4$. Include only the outer-shell electrons.