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the mass number is number of protons in an atom, plus the number of neutrons.

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โˆ™ 2011-08-23 02:11:11
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Related questions

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


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 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


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).


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 and atomic number for carbon?

Atomic number 6 and Mass number is 12


How you can determine the number of neutrons an atom has from an atom's mass number and it's atomic mass?

It is impossible to determine the number of neutrons from the mass number and atomic mass, since the two are essentially same value. However, with the atomic number and the mass number, one can calculate the number of neutrons by subtracting the atomic number from the mass number.


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.


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.


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 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.


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 element has a mass number of 19?

K, or potassium, has a mass number of 19. Fluorine is a non metal element. Mass number of it is 19. No, mass number for potassium is not 19. That is the atomic number.


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.


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


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


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 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


What is the mass number of an element?

Mass number is the atomic mass of a particular isotope (apex chem 5.3)


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.


How is the mass number calculated?

the mass number is equal to the number of Neutrons plus the number of Protons mass# = #n + #p


Is mass number a whole number?

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


Why actual atomic mass is greater than mass number?

Mass number = number of protons + number of neutrons in an atom


What is the atomic mass and mass number of an 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.


How do you distinguish between atoms using atomic number mass number and atomic mass?

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.