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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.
What is the atomic mass of a atom?
The atomic mass of an atom is the total mass of protons, neutrons, and electrons in the atom, measured in atomic mass units (amu). It is approximately equal to the sum of the number of protons and neutrons in the atom's nucleus.
What is the number of atomic mass of a certain atom that has 22 protons 22 electrons and 27 neutrons?
The atomic mass number of an atom equals the sum of the numbers of neutrons and of protons; in this instance, 27 + 22 = 49.
What The atomic mass of an atom equals the sum of the masses of the?
Protons and neutrons.
The sum of the protons and neutrons in an atom equals the .?
atomic number
What is the sum of protons neutrons in an atom?
Mass number = Protons+Neutrons
What makes up nearly all of the atom's mass?
The sum of all Protons and Neutrons.
What areParticles that makes protons and neutrons?
The sum of the number of protons and neutrons in an atom
An atoms what number is the sum of protons and neutrons?
The sum of protons and neutrons in an atom is called mass number.
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 is the sum of protons and neutrons in an atom?
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 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.
What is the atomic mass of a atom?
The atomic mass of an atom is the total mass of protons, neutrons, and electrons in the atom, measured in atomic mass units (amu). It is approximately equal to the sum of the number of protons and neutrons in the atom's nucleus.
