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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
What else can I help you with?
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.
Is it possible for an element to have more than 1 atomic formula?
No, each element has a unique atomic formula based on the number of protons in its nucleus, which is called the atomic number. This atomic formula is represented by the element's chemical symbol.
What is the chemical formula for heluim?
The chemical formula for helium is He. It is a noble gas with an atomic number of 2.
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.
What is the atomic number for CH3?
The atomic number refers to the number of protons in an atom's nucleus. Since CH3 is a molecular formula representing a compound composed of carbon and hydrogen, it does not have an atomic number.
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 mass?
number of electrons
What is Formula for atomic mass?
number of electrons
Is it possible for an element to have more than 1 atomic formula?
No, each element has a unique atomic formula based on the number of protons in its nucleus, which is called the atomic number. This atomic formula is represented by the element's chemical symbol.
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 of argon?
Argon Ar Atomic No 18 Atomic weight 39.948
What is the formula for Ca and I?
Calcium iodide is CaI2.
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
How is atomic number and atomic mass number related to all the 3 elements?
formula of diamond There is no straight relation at all
