The electron dot symbol should be drawn for the group 3A. Concept introduction: Electron-dot (Lewis) symbol: The numbers of valence electron are shown using dot symbol around the atomic symbol. The valance electrons are represented as a dot; the dots are distributed around the four sides of the element symbol. Primarily, fill electrons in each side of the atomic symbol, if the element has five or more than five electrons, the electrons are added in the four sides of the element symbol then it will get paired. The maximum dot of the electron in one side of the element symbol is two. A group of 1A atom has a single dot, a group of 2A atom has two dots and a group of 3A atom has three dots and so on.

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Chapter 2.9, Problem 2.23P

Interpretation Introduction

Interpretation:

The electron dot symbol should be drawn for the group 3A.

Concept introduction:

Electron-dot (Lewis) symbol: The numbers of valence electron are shown using dot symbol around the atomic symbol.

The valance electrons are represented as a dot; the dots are distributed around the four sides of the element symbol. Primarily, fill electrons in each side of the atomic symbol, if the element has five or more than five electrons, the electrons are added in the four sides of the element symbol then it will get paired. The maximum dot of the electron in one side of the element symbol is two.

A group of 1A atom has a single dot, a group of 2A atom has two dots and a group of 3A atom has three dots and so on.

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