How does sulfur fill its outermost energy level?

Sulfur has six electrons in its outermost energy level (the third shell), which can hold a maximum of eight electrons. To achieve a stable configuration similar to noble gases, sulfur tends to gain or share two additional electrons through chemical bonding, filling its outermost shell. This process typically occurs when sulfur forms compounds, such as sulfides or sulfates, where it achieves a full octet.