Question

Electron sharing can be depicted by a Lewis dot structure, in which element symbols are surrounded by dots that represent the valence electrons (electrons in the Blank shell). A Blank bond is the sharing of a pair of valence electrons by Blank atoms. Hydrogen has Blank valence electron(s) in the first shell, but the capacity of the shell is Blank electron(s). When a hydrogen atom comes close enough to a carbon atom for their orbitals to overlap, they can share their electrons. The hydrogen atom is now associated with Blank electron(s) and a Blank bond is formed. As a result, one of the structures does not make sense because hydrogen has only Blank valence electron(s) to share, so it cannot form bonds with two atoms.

Answer 1

Electron sharing can be depicted by a Lewis dot structure, in which element symbols are surrounded by dots that represent the valence electrons (electrons in the **outermost** shell). A **covalent** bond is the sharing of a pair of valence electrons by **two** atoms. Hydrogen has **one** valence electron(s) in the first shell, but the capacity of the shell is **two** electron(s). When a hydrogen atom comes close enough to a carbon atom for their orbitals to overlap, they can share their electrons. The hydrogen atom is now associated with **two** electron(s) and a **covalent** bond is formed. As a result, one of the structures does not make sense because hydrogen has only **one** valence electron(s) to share, so it cannot form bonds with two atoms.