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How do you get the mass number?


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Answered 2011-11-13 18:50:50

The mass number is equal to the number of protons plus neutrons. The mass number is located below the element name on the periodic table.

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What is atomic mass or mass number?

Atomic mass is the mass of protons + mass of neutrons Mass number is the number of protons + number of neutrons


What does the atomic mass or mass number tell you about an atom?

Atomic mass = mass of protons + mass of neutrons Mass number = Number of protons + number of neutrons


How do you find the mass number?

The formula for mass number is number of neutrons = mass number - atomic number. Mass number can also be referred to as nucleon number.


What is an atomic mass mass number?

The atomic mass number is the mass of the isotope of an element (the sum of number of protons and number of neutrons).


What is the mass number for copper?

the mass number of copper is 64 Mass number is actually Protons + Neutrons. 64 would be the answer to the Atomic Mass, not the mass number.


What is the mass number for the element uranium?

The mass number is the total number of nucleons (protons an neutrons) in the nucleus; the mass number is different for each isotope: 234U: mass number 234 235U: mass number 235 238U: mass number 238


Is the atomic mass number and the mass number the same?

atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom


What is the atomic mass or mass number?

atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom


How do you find out the number of electrons from atomic number and mass number?

* The number of electrons is equivalent to the number of protons. (unless it is an electrically unbalanced ion) * The atomic number is the number of protons in an atom, therefore, the atomic number is the number of electrons. * Mass number - number of neutrons = Number of protons = Number of electrons * Number of neutrons = Atomic mass - Number of protons (Mass number - Number of protons = Number of neutrons) *Atomic mass is the mass of the protons + the mass of the neutrons + the mass of the electrons this cannot directly indicate the number of any of these but a large Atomic mass will entail a large number of particles.


How do you calculate a mass number?

Mass number is the sum of the number of protons and the number of neutrons in the atom: Mass Number = Atomic Number + Number of Neutrons.


What is the difference between the mass number and the atomic mass of an atom?

Mass number is the total number of protons and number of neutrons. Atomic mass is the total mass of protons and neutrons


Can mass be a number?

yes mass can be a number


What is the mass number of zirconium?

Zirconium, a transition element with an atomic number of 40, has several isotopes, and each has a different mass number. Zr-88 (mass number 88), Zr-89 (mass number 89), Zr-90 (mass number 90), Zr-91 (mass number 91), Zr-92 (mass number 92), Zr-93 (mass number 93), Zr-94 (mass number 94) and Zr-96 (mass number 96).


How does mass number differ from atomic mass?

atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom


Mass number vs atomic mass?

atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom


Atomic mass vs mass number?

atomic mass is the average relative mass (average mass of all the possible isotopes) mass number is the number of protons plus neutrons in an atom atomic number is the number of protons in the element.


Mass number for uranium?

The atomic weight of uranium is 238,02891(3) atomic mass units. The mass number is the total number of nucleons (protons an neutrons) in the nucleus; the mass number is different for each isotope: 234U: mass number 234 235U: mass number 235 238U: mass number 238


What is the mass number of a element?

Mass Number = Number of protons + Number of neutrons


How do you find out the mass number?

Mass number = Number of protons + number of neutrons


How can you get the mass number and atomic number of element?

We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.


Why do you subtract the atomic number from the mass number?

We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.


Why is the atomic mass number is not a whole number?

We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.


What is the subatomic particle on which mass number is based?

Mass number = Mass of protons + mass of neutrons


What is the difference between mass number atomic mass and atomic number?

We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.


Is mass number a whole number?

Yes, mass number is always a whole number but atomic mass is usually fractional.