A Level Chemistry help

Okay so I'm really stuck on this question, any help would be appreciated:

Which element has induced dipole-dipole interactions (London forces) in its solid lattice?

A. boron
B. magnesium
C. silicon
D. sulfur

The answer is D, but why? I know it's not magnesium as it's a metal but i don't understand why it couldn't be silicon or boron.

Reply 1

TypicalNerd

Original post by convivialkiwi

Sulphur exists as simple molecules (if you are doing AQA, you should know they are rings of 8 sulphur atoms).

Si forms a giant covalent structure and I should think at A level they want you to learn B does the same, but this isn’t quite true as boron forms sort of clusters if memory serves.