Question

(i)_____ is the simple notation which is used to represent the (ii) _______of an atom. This symbol was introduced by (iii) ________ .In these symbols, valence electrons are represented by (iv) _______ and (v) ______ .

Answer 1

Lewis Symbols

1. Lewis symbol also known as the Lewis dot structure is a representation of the valence electron of an atom.
2. The electrons in the symbol are represented by dot $(\circ )$ or cross $(\times )$.
3. A single bond is represented by two dots $(\circ \circ )$ or a line$(—)$ between the atoms.
4. It was introduced by Gilbert N. Lewis in 1916.

So, Lewis Symbol is the simple notation which is used to represent the valence electron of an atom. This symbol was introduced by Gilbert N. Lewis.In these symbols, valence electrons are represented by dot and cross.