Final answer:
The Lewis structure of water includes two pairs of nonbonding electrons on the oxygen atom, with oxygen having a partial negative charge and hydrogen atoms having a partial positive charge, reflecting water's polar nature.
Step-by-step explanation:
The Lewis structure of water (H₂O) depicts the molecule as having two hydrogen (H) atoms each forming a single covalent bond with the oxygen (O) atom. The oxygen atom has four nonbonding electrons, arranged as two lone pairs. In terms of partial charge, the difference in electronegativity between hydrogen and oxygen leads to oxygen holding a partial negative charge (δ-), while each hydrogen has a partial positive charge (δ+). This makes water a polar molecule due to the uneven distribution of electron density. The correct depiction places the lone pairs on the oxygen and indicates the partial positive and negative charges as outlined by the electronegativity differences. Water's ability to engage in hydrogen bonding and interact with ions, such as Na⁺ or Cl⁻, stems from these partial charges.