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What is the formula for the atomic number?

Updated: 11/3/2022
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Meredith Stracke

Lvl 10
4y ago

Best Answer

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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2y ago
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Q: What is the formula for the atomic number?
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Continue Learning about Natural Sciences

What does the formula atomic mass minus the atomic number equal?

By subtracting the mass number and the atomic number, the number of neutrons can be calculated.


What is the mathematical formula for an atomic bomb?

i am also want to know what was the chemical formula of atomic bomb


A chemical formula shows kind and number of atoms that form a?

It is not a formula, it is the atomic number and the mass number.The atomic number is the number of protons.The mass number is the weight of a single atom of the element and also the number of protons and neutrons.The number of neutrons can be found by taking the proton number from the atomic number.If you are talking about moles and titration then change the question and I will give a more suitable answer.


What is the atomic number for Rubies?

Ruby is not a element, so it does not have an atomic number. Ruby is a red variety of the mineral called corundum (all other color varieties are called sapphires), which is composed of the elements aluminum and oxygen and has the formula Al2O3. Aluminum has the atomic number 13 while oxygen's atomic number is 8.


How do you write a mathematical formula for figuring out the number of neutrons in an atom if you know the atomic number and the atomic mass?

It's quite simple. It's just the atomic mass minus the atomic number. That's because the atomic number is simply the number of protons and the atomic mass is (almost exactly) the number of protons plus neutrons. Unfortunately there is a complication. The problem is that a particular element can have more than one isotope. Each isotope has the same number of protons, but different numbers of neutrons. This can make the atomic mass a messy number that's not a nice whole number.

Related questions

What is the formula to get a number atomic neutron?

No. of neutrons=Atomic mass - Atomic number


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 does the formula atomic mass minus the atomic number equal?

By subtracting the mass number and the atomic number, the number of neutrons can be calculated.


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 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


What is the formula for atomic mass?

number of electrons


What is Formula for atomic mass?

number of electrons


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 a number in a chemical formula that tells the number of atoms in a molecule called?

The atomic number.


How is atomic number and atomic mass number related to all the 3 elements?

formula of diamond There is no straight relation at all


What is the atomic number of wood alchol?

Wood alcohol is not an element, so it doesn't have an atomic number. It does have a chemical formula, which is CH4O.


What is the mathematical formula for an atomic bomb?

i am also want to know what was the chemical formula of atomic bomb