Question

A nitrogen ion has a mass of 14 and a charge of +2. Which subatomic particles does it contain?(1 point)
Responses

4 protons, 4 neutrons, and 6 electrons
4 protons, 4 neutrons, and 6 electrons

2 protons, 6 neutrons, and 6 electrons
2 protons, 6 neutrons, and 6 electrons

7 protons, 7 neutrons, and 9 electrons
7 protons, 7 neutrons, and 9 electrons

7 protons, 7 neutrons, and 5 electrons

Answer 1

To determine the number of subatomic particles in a nitrogen ion with a mass of 14 and a charge of +2, we start with the following information:

1. **Atomic Number of Nitrogen (N)**: The atomic number of nitrogen is 7, which means it has 7 protons.
2. **Mass Number**: The mass number is given as 14, which is the sum of protons and neutrons in the nucleus.
3. **Charge**: A charge of +2 indicates that the ion has lost two electrons.

Now, let's break it down:

- Protons: 7 (since it is nitrogen)
- Neutrons: Mass number - Protons = 14 - 7 = 7 neutrons
- Electrons: For a +2 charge, it has lost 2 electrons. So, it would have 7 (neutral nitrogen) - 2 = 5 electrons.

Thus, the nitrogen ion with a mass of 14 and a charge of +2 has:

**7 protons, 7 neutrons, and 5 electrons.**

The correct response is:

**7 protons, 7 neutrons, and 5 electrons.**