The atomic number of sulfur (s) is 16. sulfur combines with hydrogen by covalent bonding to form a compound, hydrogen sulfide. based on the number of valence electrons in a sulfur atom, predict the molecular formula of the compound. (explain your answer.)

The molecular formula of hydrogen sulfide is H₂S.

Explanation:

The atomic number of S is 16.0 and its electronic configuration is: 1s² 2s² 2p⁶ 3s² 3p⁴ (2,8,6).Based on the number of valence electrons in a S atom that it contains 6 electrons in the outershell.It needs 2 electrons to be completely filled in the outershell and be more stable according to octet rule.So, it will form two bonds with two hydrogen atoms that each H atom contains 1 electron.Thus, The molecular formula of hydrogen sulfide is H₂S.

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