Q. 6.10 - An Introduction to General, Organic, and Biological Chemistry

Question

Write the symbol for the ion of each of the following:

a. fluorine               b. barium

c. sodium                d. iodine

Step-by-Step Solution

Answer

(part a) The symbol for Fluorine is $F{l}^{-}$

(part b) The symbol for Barium is  $B{a}^{2+}$ 

(part c) The symbol for Sodium is $N{a}^{+}$ 

(part d) The symbol for Iodine is   $I^{-}$

Step 1: Introduction (part a)

The given are the ions Fluorine, Barium, Sodium, and Iodine. To find the symbol for each ion

Step 2: Explanation (part a)

(part a)  Fluorine is a non-metal in Group $7$ (A) with seven valence electrons. To complete its octet, it can gain one electron. The symbol of fluorine is F. It has  protons and after the gain of one electron. The ion's total number of electrons is $10$ . Determine the ionic charge on the ion by adding the total positive charge due to the total number of protons and the total negative charge due to the total number of electrons:

Ionic charge =  

Write the symbol of the ion with calculated ionic charge as . As a result, the symbol for fluorine ion is  .

Step 3: Explanation (part b)

(part b)  Barium is a metal in Group $2$ (A) with two valence electrons. It can lose two electrons to complete its octet. The symbol of calcium is $Ba$. It has $20$ protons and after the loss of two electrons, the total number of electrons in the ion is $18$ . Determine the ionic charge on the ion by adding the total positive charge due to the total number of protons and the total negative charge due to the total number of electrons:

Ionic charge    

Write the symbol of the ion with calculated ionic charge as   . Thus, the symbol for the ion of calcium is   .

Step 3: Explanation (part c)

(part c)   Sodium is a metal in Group $1$ (A) with one valence electron. It can lose one electron to complete its octet. The symbol of sodium is $\mathrm{Na}$. It has $11$ protons and after the loss of one electron, the total number of electrons in the ion is $10$ . Determine the ionic charge on the ion by adding the total positive charge due to the total number of protons and the total negative charge due to the total number of electrons:

Ionic charge =   

Write the symbol of the ion with calculated ionic charge as  . Thus, the symbol for the ion of sodium is  .

Step 5: Explanation (part d)

(part d) lodine is a non-metal in Group $7$(A) with seven valence electrons. It can gain one electron to complete its octet. The symbol of iodine is $I$ . It contains 54 protons, and after gaining one electron, the ion's total number of electrons is 54. Determine the ionic charge on the ion by adding the total positive charge due to the total number of protons and the total negative charge due to the total number of electrons:

Ionic charge =  

Write the symbol of the ion with calculated ionic charge as  . Thus, the symbol for the ion of iodine is  .