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By the sum of protons and neutrons we obtain the mass number of the atom which is written at the top of the atom periodic number. We can also obtain the mass number by adding the atomic number and the number of neutrons because the atomic number and the number of protons are same. You know that scientists have discovered some particles which are smaller than protons and neutrons and these are known as quartz.
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∙ 11y ago
Dave M
Whether the element is an isotope in fairly good abundance or not is derived from the mass number in the nucleus (protons and neutrons). You can determine abundance from the Atomic Mass.
The mass of an electron is 9.11EE-31kg and is considered to be zero by a rounding assumption.
Wiki User
∙ 11y agoIt will be atomic mass (if the weight of protons and neutrons are considered) or it will be mass number (if the number of protons and neutrons are considered).
Wiki User
∙ 11y agoMass number = Number of protons + Number of neutrons
Wiki User
∙ 11y agoatomic mass
akhilesh kumar
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An atoms what number is the sum of protons and neutrons?
The sum of protons and neutrons in an atom is called mass number.
In periodic table of elements it is the sum of the number of protons and neutrons of an atom.?
The sum of protons and neutrons is the atomic mass.
An atoms mass number equals the combination of what two things?
The mass number of an element is equal to the sum of the elements neutrons and protons.
The sum of the protons and the neutrons indicates the .?
By the sum of protons and neutrons we obtain the mass number of the atom which is written at the top of the atom periodic number. We can also obtain the mass number by adding the atomic number and the number of neutrons because the atomic number and the number of protons are same. You know that scientists have discovered some particles which are smaller than protons and neutrons and these are known as quartz.
What does the protons and neutrons tell you about the oxygen atom?
protons will tell the atomic number (8) the sum of protons and neutrons will give the mass number of the element
How is the mass number of a atom indicated?
The mass number is the sum of protons and neutrons in the nucleus of an atom.
What makes up nearly all of the atom's mass?
The sum of all Protons and Neutrons.
What is the sum of protons neutrons in an atom?
Mass number = Protons+Neutrons
An atoms what number is the sum of protons and neutrons?
The sum of protons and neutrons in an atom is called mass number.
Is indicated by the sum of the protons and the neutrons?
By the sum of protons and neutrons we obtain the mass number of the atom which is written at the top of the atom periodic number. We can also obtain the mass number by adding the atomic number and the number of neutrons because the atomic number and the number of protons are same. You know that scientists have discovered some particles which are smaller than protons and neutrons and these are known as quartz.
What Make up nearly all of an atoms mass?
The sum of all protons and neutrons - Apex Learning
What is the sum of protons and neutrons known as an element?
Sum of protons and neutrons is the Mass number of the element. The number of protons is equal to the number of electrons. Neutrons and protons are sub atomic particles.
In periodic table of elements it is the sum of the number of protons and neutrons of an atom.?
The sum of protons and neutrons is the atomic mass.
What areParticles that makes protons and neutrons?
The sum of the number of protons and neutrons in an atom
Is the is the sum of the numbers of protons and neutrons in an isotope of the element?
Isotopes involve different atomic masses. It is sum of number of protons and neutrons.
What is the sum of protons and neutrons?
The mass number
The mass number of an atom of calcium with 20 protons and 20 neutrons is?
40, the sum of the protons and neutrons.
