Q. 6.96 - An Introduction to General, Organic, and Biological Chemistry

Question

Identify each of the following atoms or ions: $(6.1)$

Step-by-Step Solution

Answer

a. It is a Lithium $\left({\mathrm{Li}}^{+}\right)$ ion.

b. It is a Hydrogen $\left({\mathrm{H}}^{+}\right)$ ion. 

c. It is a Lithium $\left(\mathrm{Li}\right)$ atom. 

d. It is a Nitrogen $\left({\mathrm{N}}^{3-}\right)$ ion. 

Part(a) Step 1: Given information

We need to find out which atom or an ion the given species is. 

Part(a) Step 2: Explanation

Ions are electrically charged particles that originate when atoms lose or receive electrons in order to form a stable electron configuration.

In an atom, number of protons is same as number of electrons. 

Given species have $3$ protons which means it's atomic number is $3$. But it have $1$ less electron. Therefore, it is a Lithium $\left({\mathrm{Li}}^{+}\right)$ ion.

Part(b) Step 1: Given information

We need to find out which atom or an ion the given species is. 

Part(b) Step 2: Explanation

Ions are electrically charged particles that originate when atoms lose or receive electrons in order to form a stable electron configuration.

In an atom, number of protons is same as number of electrons. 

Given species have $1$ proton which means it's atomic number is $1$. But it have $0$ electron. Therefore, it is a Hydrogen $\left({\mathrm{H}}^{+}\right)$ ion.

Part(c) Step 1: Given information

We need to find out which atom or an ion the given species is. 

Part(c) Step 2: Explanation

Ions are electrically charged particles that originate when atoms lose or receive electrons in order to form a stable electron configuration.

In an atom, number of protons is same as number of electrons. 

Given species have $3$ protons which means it's atomic number is $3$ and it have $3$ electrons also. Therefore, it is a Lithium $\left(\mathrm{Li}\right)$ atom.

Part(d) Step 1: Given information

We need to find out which atom or an ion the given species is. 

Part(d) Step 2: Explanation

Ions are electrically charged particles that originate when atoms lose or receive electrons in order to form a stable electron configuration.

In an atom, number of protons is same as number of electrons. 

Given species have $7$ protons which means it's atomic number is $7$. But it have $3$ more electrons. Therefore, it is a Nitrogen $\left({\mathrm{N}}^{3-}\right)$ ion.