Q. 4.55 - An Introduction to General, Organic, and Biological Chemistry

Question

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

a. Sulfur

b. Nitrogen

c. Calcium

d. Sodium

e. Gallium

Step-by-Step Solution

Answer

Group number and Lewis dot structure are:

(a) Sulfur: Group is $6A \left(16\right)$; Lewis structure

 

(b) Nitrogen: Group is $5A \left(15\right)$; Lewis structure

 

(c) Calcium: Group is $2A \left(2\right)$; Lewis structure

(d) Sodium: Group is $1A \left(1\right)$; Lewis structure

(e) Gallium: Group is $3A \left(13\right)$; Lewis structure

Part (a) Step 1: Given Information

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

Part (a) Step 2: Explanation

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

Part (b) Step 1: Given Information

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

Part (b) Step 2: Explanation

Because group number of nitrogen is $5A \left(15\right)$, nitrogen has five valence electrons. So, Lewis dot structure of nitrogen is

Part (c) Step 1: Given Information

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

Part (c) Step 2: Explanation

Because group number of calcium is $2A \left(2\right)$,calcium has $2$valence electrons. So, Lewis dot structure of calcium is

Part (d) Step 1: Given Information

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

Part (d) Step 2: Explanation

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

Part (e) Step 1: Given Information

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

Part (e) Step 2: Explanation

Because group number of gallium is $3A \left(13\right)$, gallium has three valence electrons. So, Lewis dot structure of gallium is