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Since the mass of one proton or one neutron is almost exactly equal to 1 gram per mole, and the mass of an electron is negligible, the atomic mass of 1 mole atoms can be found by adding the number of protons and neutrons it contains.
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What is the sum of protons and neutrons in an atom?
Mass number!:)
An atoms what number is the sum of protons and neutrons?
The sum of protons and neutrons in an atom is called mass number.
What is the sum of protons neutrons in an atom?
Mass number = Protons+Neutrons
The mass number is used to calculate the number of?
protons and neutrons in an atom. It is the sum of protons and neutrons in the nucleus of an atom.
What areParticles that makes protons and neutrons?
The sum of the number of protons and neutrons in an atom
The mass number of an atom of calcium with 20 protons and 20 neutrons is?
The mass number of an atom is the sum of the protons and neutrons in its nucleus. Therefore, for an atom of calcium with 20 protons and 20 neutrons, the mass number would be 40.
The mass number of an atom indicates the number of what?
The mass number is the sum of protons + neutrons.
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.
The mass number is used to calculate the number of what?
The number of protons and neutrons in the nucleus
The sum of the protons and neutrons in an atom is its?
atomic number
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 is the mass number of 10 protons and 10 neutrons?
20. the mass of an atom is determined by the sum of the number of neutrons and protons the atom has.
