Write plausible Lewis structures for the following molecules...

Write plausible Lewis structures for the following molecules that contain only single covalent bonds.
(a) $\mathrm{FCl} ;$ (b) $\mathrm{I}_{2} ;$ (c) $\mathrm{SF}_{2} ;$ (d) $\mathrm{NF}_{3} ;$ (e) $\mathrm{H}_{2} \mathrm{Te}$.

Key Concepts

Bonding and Lone Pairs

In Lewis structures, electrons are represented as either bonding pairs (shared between two atoms forming a covalent bond) or lone pairs (non-shared electrons that reside on a particular atom). Distinguishing these pairs is key to understanding molecular geometry and predicting the behavior of a molecule.

Single Covalent Bonds

Single covalent bonds involve the sharing of one pair of electrons between two atoms. Recognizing when a molecule contains only single bonds simplifies the process of drawing the structure since each connection is represented by one line or a pair of shared electrons.

Octet Rule

The octet rule is a chemical guideline that atoms tend to form compounds in ways that give them eight electrons in their valence shell, mimicking the electron configuration of noble gases. This rule is used as a basis for distributing electrons among atoms in a Lewis structure to achieve the most stable configuration.

Lewis Structures

Lewis structures are diagrams that represent the bonding between atoms in a molecule and the lone pairs of electrons that may exist. They focus on depicting valence electrons around atoms which participate in chemical bonds and help predict the structure, reactivity, and properties of molecules.

Valence Electrons

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming chemical bonds. Counting these electrons accurately is essential when drawing Lewis structures, as they determine the connectivity of atoms and the configuration of lone and bonding pairs.

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