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By subtracting 19 (atomic number of Potassium) from 40. You should come out with 21, which is the number of neutrons in potassium-40
What else can I help you with?
The mass number is used to calculate the number of what?
The number of protons and neutrons in the nucleus
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.
What equation is used to calculate neutrons for an element?
Number of neutrons = Atomic mass - Atomic number
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 neutrons?
You subtract 54 from the mass number.
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.
How do you calculate how many neutrons there are in a atom?
The atomic weight minus the number of protons = the atom's neutrons.
How many nuetrons is in lithium?
4 neutrons in the most stable isotope of lithium (3Li7)
How do you calculate the number of neutrons an atom of a specific element has?
You can calculate the number of neutrons an atom has by subtracting the atomic number (number of protons) from the atomic mass (rounded to the nearest whole number). Neutrons are the difference between these two values.
In order to calculate the number of neutrons you must subtract the from the?
In order to calculate the number of neutrons, you subtract the atomic number (number of protons) from the atomic mass (rounded to the nearest whole number). Neutrons are important for stabilizing the atomic nucleus alongside protons.
How can you calculate the number of neutrons N in an atom?
equal to number of protons
