The document provides steps to write the Lewis structure for carbon disulfide (CS2): 1. Determine the number of valence electrons for each atom (C has 4, S has 6). Total valence electrons for CS2 is 10. 2. Draw an initial sketch showing the atoms. Place each atom's valence electrons around it. 3. Form single bonds between atoms by pairing their valence electrons. Additional electrons are needed to complete the octet of each sulfur atom. 4. The final Lewis structure shows each carbon and sulfur atom with 8 electrons, completing their octets.