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You subtract 54 from the mass number.
What else can I help you with?
How do you calculate proton neutrons and electrons in Na?
11 protons and 12 neutrons
The mass number is used to calculate the number of what?
The number of protons and neutrons in the nucleus
How do you calculate how many neutrons there are in a atom?
The atomic weight minus the number of protons = the atom's neutrons.
What equation is used to calculate neutrons for an element?
Number of neutrons = Atomic mass - Atomic number
How do you calculate the mass of the atom?
Protons and neutrons= mass
How do you calculate the number of neutrons in cobalt?
The number of neutrons in any element is equal to mass number - atomic number. So,number of neutrons in cobalt is = 58 - 27 = 32. therefore, number of neutrons in cobalt is 32.
The mass number is used to calculate the number of?
protons and neutrons in an atom. It is the sum of protons and neutrons in the nucleus of an atom.
Calculate the number of protons electrons and neutrons in helium-6?
Helium-6 has two protons and electrons and four neutrons.
What is the mass number and how do you calculate it?
The mass number is the total number of protons and neutrons in an atom's nucleus. To calculate the mass number, simply add the number of protons and neutrons together in the nucleus of an atom.
How do you calculate xenon neutrons?
Xenon has a variety of isotopes, each with a different number of neutrons. The most common isotope, Xenon-132, has 77 neutrons. To calculate the number of neutrons in a xenon isotope, subtract the number of protons (which is equal to the atomic number) from the mass number of the isotope.
How do you calculate the atomic weight of an unknown metal?
count the protons and neutrons
How many nuetrons is in lithium?
4 neutrons in the most stable isotope of lithium (3Li7)
