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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

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Jamir Kuhn

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โˆ™ 2021-07-27 18:54:10
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Q: What is the formula for the atomic number?
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Related questions

What is the formula to get a number atomic neutron?

No. of neutrons=Atomic mass - Atomic number


What is the formula for calculating the number of neutrons?

atomic mass-atomic number


What is the formula to get the atomic number of protons?

There is no need for a formula. The atomic number of an element is the same as the number of protons in the atom. e.g. chlorine has the atomic number 17 so its atom has 17 protons.


What is the number in front a chemical formula is called?

atomic number or atomic weight. Subscript: atomic number, superscript: atomic weight: 94Pu239 or 239Pu


What is the number in front of a chemical formula called?

atomic number or atomic weight. Subscript: atomic number, superscript: atomic weight: 94Pu239 or 239Pu


What is the formula for atomic mass?

number of electrons


What is Formula for atomic mass?

number of electrons


What is the atomic number for water?

water is not an element. it don't have an atomic number. its molecular formula is H2O.


What is the formula to get the number of electron?

It is the same as the atomic number of the element.


What is the atomic number of magnesium oxide?

Atomic number of magnesium = 12 Atomic number of oxygen = 8 Formula of magnesium oxide = MgO = atomic number of 20(12+8)


What is the atomic number of ammonium?

Ammonium is a polyatomic ion, not an element and thus it does not have an atomic number. It is composed of nitrogen and hydrogen and has the formula NH4+. Nitrogen has the atomic number 7. Hydrogen has the atomic number 1.


What is the formula for 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

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