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The atomic number denotes the number of protons in an atom where the mass number gives the sum of protons and neutrons.

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Q: How are the mass number and the atomic number of an elment different?
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What is an atomic mass of an elment based on?

the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.


What is the atom with same atomic number but different 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 many protons and neutrons are in the nucleus of the atom?

No it is not the atomic number. We call it mass number.


How are the atomic mass and the atomic number different?

the atomic mass is the number of protons and neutrons in an atom of an element and the atomic number is the number of protons of an atom of an element.


How is the mass number different from the average 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.


What is an atomic mass number?

Atomic mass and atomic number are two different things. Atomic mass is the mass of an atom compared to that of hydrogen. The atomic number is the atom's position in the periodic table. It's also the number of protons it has.


Atomic mass differing from atomic mass number?

Those are different facts. atomic number is total of protons and neutrons.


What is the difference between isobar and isotope?

isobars are elements with same mass numbers (Atomic Mass) and different atomic number (number of proton or electron)


Why atomic mass is different from the mass numbers?

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


Atomic mass differnet from the atomic mass number why is that?

The atomic mass is an average, allowing for the relative abundances of different isotopes.


What does a mass number determine?

mass number = number of protons + number of neutrons DIFFERENT FROM ATOMIC MASS atomic mass = weighted average of all the isotopes of that element


How may neutrons does neon have?

Number of neutrons = Atomic mass - Atomic number Atomic number of neon: 10 Atomic mass: depending on the neon isotope, each isotope has a different mass