What do you call a 'slot' of a class?

Question

For example, in the sentence "There are no slots available for this class", or if you wanted to put in a table.

Class	Slots Available
Chemistry	10
Physics	24

Is 'slot' the correct term?

Answer 1

I think we generally say "seat". "There are 20 seats available in this class." Or you could say "student", with words such as "space for" or "room for", as in, "This class has space for 20 students."

You could say "slot", though as @jamesmathai says, a "slot" could also refer to a time slot. You'd have to make clear which you mean.