Iron-59 has 26 protons and 26 neutrons.
The mass number is the sum of protons + neutrons.
25 is the number of protons and neutrons added together. The atomic number of Mg is 12 which is the number of protons. So 25 - 12 = 13 neutrons.
Mass number!:)
The mass number is the average atomic mass of all the isotopes that are found in nature.
The element that has 8 protons and 8 neutrons is oxygen.
Atomic number = number of protons + number of neutrons Mass number = number of protons + number of neutrons
Number of protons + Number of neutrons = Mass number(number of nucleons)
Mass number is about the neutrons and protons. The total of neutrons and protons.
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
The ratio of neutrons to protons in an atom can be calculated by subtracting the atomic number (number of protons) from the atomic mass (sum of protons and neutrons) of the atom. Mathematically, ratio of neutrons to protons = (Atomic mass - Atomic number).
The mass number is the sum of protons + neutrons.
atomic mass number - protons = number or neutrons
The mass number of an element is equal to the sum of the elements neutrons and protons.
25 is the number of protons and neutrons added together. The atomic number of Mg is 12 which is the number of protons. So 25 - 12 = 13 neutrons.
To find the number of neutrons in an element, subtract the atomic number (number of protons) from the mass number (sum of protons and neutrons). Neutrons do not carry a charge and help stabilize the nucleus of an atom.
Mass number = Protons+Neutrons
The number of protons and neutrons in the nucleus