The electron configuration for sulfur is 1s2 2s2 2p6 3s2 3p4. Sulfur's atomic number is 16; therefore, it has 16 electrons in its outermost energy level. Sulfur needs another two electrons to have a stable arrangement.
Sulfur is an electronegative element; it tends to attract electrons. It lies in the sixth group, also called the chalcogen group. Sulfur is a solid non-metal at room temperature.
Sulfur combines with four atoms of oxygen to form sulfate, an ion that has a -2 charge. Sulfate combines with a myriad of other elements such as magnesium and calcium. An important compound containing sulfur is sulfuric acid, which is a combination of two atoms of hydrogen and a sulfate molecule.