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Number of neutrons

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Number of protons

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Q: How do you figure out atomic mass number?
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How do you tell figure out the atomic mass?

Atomic mass is the number of protons + the number of neutrons in the nucleus of an atom. On the periodic table, the average atomic mass of an element will the be number at the bottom of each box.


How do you figure the number of neutron's in an atom?

Take the Atomic Mass and round it to the nearest whole number. Then subtract this number and the atomic number of that element.


How do you figure neutrons on periodic chart?

by subtracting the atomic number from the mass number. the atomic number is the one under the element's symbol and the mass number is the one above the element's symbol.


How do you figure out many protons there are if you are givin the atomic number and number of neutrons?

The atomic number IS the number of protons. if you are given the mass number, then subtract the number of protons from it.


How can you figure out how many neutrons are in an atoms nucleus by using the atomic number and the atomic mass?

The atomic mass (rounded to the nearest whole number) is the number of nucleons - i.e. protons+neutrons. The atomic number is just the number of protons. So the difference between the two (mass minus number) tells you the number of neutrons.


How do you know the number of protons from the number of neutrons?

If you have both the mass number and atomic number you can figure it out, since the atomic number is the number of protons. Say the mass number is 13 and the atomic number is 8. 13-8 is 5, so you would have 5 neutrons.


If you know the atomic number and the mass number of an isotope how could you figure out the number of neutrons in its nucleus.?

The mass number is the total number of protons plus neutrons in the nucleus. The atomic number is the total number of protons in the nucleus. So subtract the atomic number from the mass number and that will give you the total number of neutrons in the nucleus.


If you know the atomic number and the mass number of an isotope how could you figure out the number of neutrons in its nucleus?

The mass number is the total number of protons plus neutrons in the nucleus. The atomic number is the total number of protons in the nucleus. So subtract the atomic number from the mass number and that will give you the total number of neutrons in the nucleus.


How do you figure out how many neutrons a atom has?

You find out the charge of nucleus (a number of protons), multiply it by mass of proton. Then substitute the result from the mass of nucleus and divide by mass of neutron. The result will give number of neutrons in the nuclei. waeva is da ansa hahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha!!


How many neutrons is in californium?

153 neutrons in the most stable isotope Number of neutrons = Atomic mass of an isotope - atomic number. Atomic mass of the most stable isotope of Cf is 251. Atomic number of Cf is 98.


How many protons neutrons and electrons in 40Ca plus 2?

I don't want to do your homework for you. Here's how you figure it out: Protons = atomic number Neutrons = atomic mass - atomic number Electrons = atomic number + ionization


A chlorine atom that has 17 protons and 18 neutrons is called?

The mass number is the sum of the protons and neutrons, in this case 35. The atomic number is the same as he number of protons, in this case 17.