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What is the formula for the atomic number?

atomic number = number of proton in an element number of proton = number of electron mass number = number of proton + number of neutron therefore... atomic number = mass number - number of neutrons


How To find the number of neutrons in an atom subtract its . isotope number from its atomic number atomic number from its mass number mass number from its atomic number?

To find the number of neutrons in an atom, you subtract the atomic number (which represents the number of protons) from the mass number (the total number of protons and neutrons). The formula is: Number of Neutrons = Mass Number - Atomic Number. This calculation gives you the number of neutrons present in the nucleus of the atom.


How do you get the mass number by adding neutrons and the atomic number?

The mass number of an atom is the sum of the number of protons and neutrons in its nucleus. The atomic number represents the number of protons in an atom, so adding the atomic number to the number of neutrons will give you the mass number.


The atomic number refers to the number of what in an atom?

Z, or the atomic number, represents the number of protons in a element as opposed to A, which is the mass number, the number of protons and neutrons.


Would you use atomic number or mass number or both to obtain the number of particles in an atom?

atomic number is the total number of protons OR electrons in an atom. mass number is the total sum of number of protons and neutrons. atomic number subtracted from mass number gives the number of neutrons in an atom. Mass number - atomic number = number of neutrons.