Question

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

7 protons, 7 neutrons, and 5 electrons
7 protons, 7 neutrons, and 5 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

4 protons, 4 neutrons, and 6 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 can use the following information about nitrogen:

1. Nitrogen (N) has an atomic number of 7, which means it has 7 protons.
2. The mass number (which is the total number of protons and neutrons) given is 14.

Since the mass number is the sum of protons and neutrons, we can find the number of neutrons:
- Number of neutrons = Mass number - Number of protons = 14 - 7 = 7 neutrons.

For the charge of the ion, a charge of +2 indicates that the ion has lost 2 electrons:
- The number of electrons in a neutral nitrogen atom would be equal to the number of protons, which is 7. However, since this ion has a +2 charge:
- Number of electrons = 7 - 2 = 5 electrons.

Putting it all together, the nitrogen ion contains:
- 7 protons, 7 neutrons, and 5 electrons.

The correct response is:
**7 protons, 7 neutrons, and 5 electrons**.