You subtract the atomic number from the mass number.
This is an atom of sulfur, which we know by the number of protons. And it's a neutral atom of sulfur, because the number of electrons equals the number of protons. Also, we know it's the most abundant isotope of sulfur because of the 16 neutrons. A link can be found below.electrons
The number of protons and neutrons in the nucleus
The mass number of an atom is the sum of its protons and neutrons. In this case, nitrogen (N) has 7 protons and a mass number of 14. So, the number of neutrons in an atom of nitrogen is 14 - 7 = 7 neutrons.
If you add the number of protons to the number of neutrons in an atom, you have calculated that atom's atomic mass.
protons and neutrons in an atom. It is the sum of protons and neutrons in the nucleus of an atom.
The number of neutrons in one atom can vary depending on the element. Neutrons are one of the three main subatomic particles found in an atom, along with protons and electrons. The number of neutrons in an atom is calculated by subtracting the number of protons (atomic number) from the atomic mass of the atom.
The number of protons and neutrons in its' nucleus.
The number of neutrons in an atom can affect the atomic mass of an atom.
In a neutral atom, the number of electrons is equal to the number of protons of the nucleus.
protons and neutrons in the nucleus of an atom. Isotopes of an element have the same number of protons but different numbers of neutrons. The number of neutrons in an atom affects its stability and often determines its nuclear properties.
The mass number of an atom is determined by the number of neutrons and protons. Since you already know the number of neutrons, you just need the number of protons, then you can add them together. I happen to know that iodine has 53 protons, so that means that the mass number is 127.It is the protons and neutrons added together so when you add 53 and 74 you get 127! Hope that helped a lot!! :):):):):):):)
Mass number!:)
The number of neutrons in an atom is called the neutron number.
The number of neutrons in an atom determines the isotope of the element. Isotopes of an element have the same number of protons but differing numbers of neutrons. This affects the stability and nuclear properties of the atom.
The total amount of protons and neutrons in an atom is its mass number.
By the sum of protons and neutrons we obtain the mass number of the atom which is written at the top of the atom periodic number. We can also obtain the mass number by adding the atomic number and the number of neutrons because the atomic number and the number of protons are same. You know that scientists have discovered some particles which are smaller than protons and neutrons and these are known as quartz.
20. the mass of an atom is determined by the sum of the number of neutrons and protons the atom has.