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As I remember neutrons and protons weight something similar, electrons have a far smaller mass which is negligable in comparison to the weight of protons.
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∙ 14y ago
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How do you determine the number of protons electrons and neutrons present in an element by identifying its atomic and mass numbers from the periodic table?
Atomic number means number of protons present in an atom. Atomic number= number of protons. mass number = number of neutrons+ number of protons. So if you subtract the number of protons you get neutrons and if you subtract neutrons you get protons. mass number - protons= neutrons Mass number - neutrons = protons.
How many protons electrons and neutrons are in an atom with an atomic number of seventy nine and an atomic mass of one hundred ninety seven?
59 = # of protons and # of electons 59 protons make up 59 of the mass number (electons have an insignificant mass), so the rest of the mass must be from neutrons: 96 - 59 = 37 neutrons
Electrons and protons differ in their?
Mass, electric charge, and internal structure.
How is atomic number differ from mass number?
atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom
Do isotopes of the same element differ in mass number?
isotopes just mean they have a different number of neutrons so if the..Mass number = # of protons + # of neutrons -they will have a different (greater) mass
What they do mass number?
Mass number is about the neutrons and protons. The total of neutrons and protons.
The mass number of an element is equal to the total number of?
The mass number is the average atomic mass of all the isotopes that are found in nature.
How does the mass of a nucleus differ from the mass of an electron?
There is no simple answer.The mass of a nucleus depends on the number of neutrons and protons in the nucleus. The number of protons in the nucleus depends on the element. Moreover, the number of neutrons can vary between isotopes of the same element.
What is the sum of protons and neutrons in an atom?
Mass number!:)
What particles make up the mass of an atom?
The number of protons
What Make up nearly all of an atoms mass?
The sum of all protons and neutrons - Apex Learning
Isotopes of an element differ in their?
Isotopes must have the same atomic number, which is the number of protons. The atomic mass, which is the total number of protons and neutrons, varies for the different isotopes. so it should have different mass numbers..
