chemistry exam

hi guys
i had a question what does the brackets in alevel aqa chemistry mark schemes mean? do i get the mark if i dont mention what they hace put in brackets or not?
for example for one q it asked for electron config. of ca2+
and i put up to 3p6 and mark scheme had the (4s0)in brackets.

It means it is optional extra detail that won't get credited.

thank you so much so should i give myself the mark from now on?