Q. 5 - An Introduction to General, Organic, and Biological Chemistry

Question

Write the symbols for the ions with the following number of protons and electrons:

a. $3$protons, $2$electrons  

b. $9$protons, $10$electrons

c. $12$protons, $10$ electrons

d.  $26$protons, $23$ electrons

Step-by-Step Solution

Answer

a. $L{i}^{+}$ has $3$ protons and $2$ electrons.

b. $F^{-}$ has $9$ protons and $10$ electrons.

c. $M{g}^{2+}$ has $12$ protons and $10$ electrons.

d. $F{e}^{3+}$ has $26$ protons and $23$ electrons.

Step 1: Introduction(part a)

The given is $3$ protons and two electrons.

We have to find the symbol of ions

Step 2: Explanation(part a)

Lithium(Li) is a three-proton element. Lithium ion ($L{i}^{+}$) is a lithium ion with two electrons and a positive ionic charge of $1+$.$L{i}^{+}$ has three protons and two electrons.

Step 3: Introduction(part b)

The given is $9$ proton and $10$ electrons.

We have to find the symbol of ions.

Step 4: Explanation(part b)

Fluorine(F) is a $9$ proton element. Fluoride ion ($F^{-}$) is a Fluorine ion with ten electrons and a positive ionic charge of $1-$. Fluoride ion($F^{-}$) has $9$ protons and $10$ electrons.

Step 5: Introduction(part c)

The given is $12$ protons and $10$ electrons.

We have to find the symbol of ions.

Step 6: Explanation(part c)

Magnesium(Mg)  is a $12$ proton element. Magnesium ion($M{g}^{2+}$) is a magnesium ion with $10$ electrons and a positive ionic charge of $2+$.Magnesium ion($M{g}^{2+}$) has $12$ protons and $10$ electrons.

Step 7: Introduction(part d)

The given is $26$ protons and $23$ electrons.

We have to find the symbol of ion.

Step 8: Explanation(part d)

Iron(Fe)  is a $26$ proton element. Ferric ion($F{e}^{3+}$) is a Iron(Fe) ion with $23$ electrons and a positive ionic charge of $3+$. Ferric ion($F{e}^{3+}$) has $26$ protons and $23$ electrons.