I don't really understand this and my teacher at school is no help. Can anyone explain what I'm supposed to do here?

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Atoms contain charged particles called protons and electrons. Each proton has a charge of +1, and each electron has a charge of –1. A sulfur ion has 16 protons and 18 electrons. Find the net charge.
---- I was given options, if that helps. But I just really need it explained so I can get it.
--- Options:
A. –34

B. +2

C. 34

D. –2

1 answer

add the charges of the protons and electrons to find the net charge

protons: +16
electrons: -18

sum: -2