Q. 4.56 - An Introduction to General, Organic, and Biological Chemistry

Question

Write the group number and draw the Lewis symbol for each of the following elements:

a. carbon

b. oxygen

c. argon

d. lithium

e. chlorine

Step-by-Step Solution

Answer

Group number and Lewis symbol for elements are:

Element	Group Number	Lewis Structure
Carbon	$4A \left(14\right)$
Oxygen	$6A \left(16\right)$
Argon	$8A \left(18\right)$
Lithium	$1A \left(1\right)$
Chlorine	$7A \left(17\right)$

Part (a) Step 1: Given Information

We need to find the group number and Lewis structure for carbon. 

Part (a) Step 2: Explanation

Because group number of carbon is $4A \left(14\right)$ ,carbon has four valence electrons. So, Lewis dot structure of carbon is

Part (b) Step 1: Given Information

We need to find the group number and Lewis structure for oxygen . 

Part (b) Step 2: Explanation

Because group number of oxygen is $6A \left(16\right)$, oxygen has six valence electrons. So, Lewis dot structure of oxygen is

Part (c) Step 1: Given Information

We need to find the group number and Lewis structure for argon 

Part (c) Step 2: Explanation

Because group number of argon is $8A \left(18\right)$, argon has eight valence electrons. So, Lewis dot structure of argon is

Part (d) Step 1: Given Information

We need to find the group number and Lewis structure for lithium 

Part (d) Step 2: Explanation

Because group number of lithium is $1A \left(1\right)$, lithium has one valence electrons. So, Lewis dot structure of lithium is

Part (e) Step 1: Given Information

We need to find the group number and Lewis structure for chlorine . 

Part (e) Step 2: Explanation

Because group number of  is chlorine $7A \left(17\right)$ , chlorine has seven valence electrons. So, Lewis dot structure of chlorine is