Mass number is a value approximate to the number of protons (Atomic Number) plus the number of neutrons within an atom of the element considered.
I say approximate as mass number takes into account the mass of the nucleus and not the actual number of protons and neutrons in the nucleus.
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.
The mass number is the number of protons and neutrons in an isotope of a given element.
It is an integer number representing the sum of protons and neutrons in an atomic nucleus.
The mass number is the sum of protons and neutrons in an atomic nucleus.
Atomic Mass units
the amount of something
No, weight is a force. Mass is proportional to density.
Atomic mass
The atomic mass number is the sum of the protons and neutrons of an element. The protons are given by the atomic number, so the neutrons can be found by subtracting the mass number by the atomic number. Both the mass and atomic numbers can be found on the periodic table.
Atomic Mass units =]
Atomic Mass units =]
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Atomic Mass units
Atomic Mass units
Atomic Mass units =]
Atomic Mass units
mass/volume
probability
A number or shape in a pattern.
The atomic mass or mass of an atom is locaed at the bottom of a sqaure on the periodic table. The atomic mass= atomic number (protons/neutrons)+electrons. Enable to find the number of electrons you must