The atomic number of sulphur is 16. Sulphur combines with hydrogen by covalent bonding to form a compound, hydrogen sulphide. Based on the number of valence electrons in a sulphur atom, predict the molecular formula of the compound.

Question

Quizplus · Accepted Answer

Sulphur has 6 valence electrons, and hydrogen has 1 valence electron. To form a stable compound, they need to share electrons covalently in a way that both atoms have a stable outer shell configuration. Since sulphur needs two electrons and hydrogen needs one electron to achieve this, the most likely molecular formula for hydrogen sulphide would be H₂S.

The Atomic Number of Sulphur Is 16