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 7 protons, 7 neutrons, and 5 electrons 7 protons, 7 neutrons, and 5 electrons 7 protons, 7 neutrons, and 9 electrons 7 protons, 7 neutrons, and 9 electrons 2 protons, 6 neutrons, and 6 electrons

Answer 1

To determine the composition of a nitrogen ion with a mass of 14 and a charge of +2, we can start with the following information about nitrogen:

- The atomic number of nitrogen (N) is 7, meaning it has 7 protons.
- The mass number is given as 14. The mass number is the sum of protons and neutrons. So, for nitrogen with a mass number of 14:

\[
\text{Number of neutrons} = \text{Mass number} - \text{Number of protons} = 14 - 7 = 7 \text{ neutrons}
\]

- The charge of the ion is +2, which means it has lost 2 electrons. In a neutral nitrogen atom, there are also 7 electrons (equal to the number of protons). With a +2 charge, the number of electrons is:

\[
\text{Number of electrons} = \text{Number of protons} - 2 = 7 - 2 = 5 \text{ electrons}
\]

Putting this together, the subatomic particle composition of the nitrogen ion with a mass of 14 and a charge of +2 is:

- 7 protons
- 7 neutrons
- 5 electrons

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