Answer:
Explanation:
To describe an atom of N-14, one must know the subatomic particles composed in it.
An atom is considered as the smallest particle that takes part in a chemical reaction. In an atom, the subatomic particles are the protons, neutrons and electrons.
The protons and neutrons are located in the nucleus at the center of the atom. These particles are the most massive in an atom and they determine the mass of the atom. The mass number of an atom is the sum of the number of protons and neutrons.
The extra-nuclear space is occupied by electrons. Electrons have little to no mass but the occupy the bulk volume in an atom. These particles are negatively charged.
In a neutral atom of N-14, we know for sure that the atom has not lost or gained electrons.
We can identify that N-14 is a nitrogen atom with a mass number of 14.
The periodic table arranges elements based on their atomic number. The atomic number is the number of protons. The number of protons in nitrogen is 7 based on the periodic table of elements. Due to the neutral nature of the atom, the number of protons and electrons are the same. Therefore, the atom has 7 electrons.
Since the mass number = number of protons + number of neutrons
number of neutrons = mass number - number of protons
number of neutrons = 14 - 7 = 7
The protons are positively charged particles and neutrons carry no charges.
