text: Wow, this takes me back.\n\nSulfur has 16 electrons, right?\n\n1s - 2 electrons\n2s - 2 electrons\n2p - 6 electrons\n3s - 2 electrons\n3p - this one can hold 6 electrons, but in sulfur, you've only got 4 more left.  you'd have one pair and two unpaired electrons.\n\nArgon has 18, so the 3p would be full, so no unpaired electrons.  Besides, it's a noble gas, so I guess you can assume that anyway.