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.
It is equal to the difference between atomic number and Atomic Mass number. A+
Atomic Mass is the average of the masses of the existing isotopes in an element, but the mass number is the sum of the protons and neutrons in the nucleus of an atom.
The mass number is the total number of protons and neutrons in an atom's nucleus, while the average atomic mass is the weighted average of the masses of all isotopes of an element, taking into account their abundance.
the difference between the atomic number and the average weight
Atomic number is the amount of electrons. Atomic mass is the amount of protons and neutrons.
The atomic number is the number of protons or, equivalently, the number of electrons. The Atomic Mass also includes the neutrons. Furthermore, the atomic mass is an average of the isotopes of the element weighted according to their abundance.
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Neptunium has the atomic number 93 and americium has the atomic number 95.
The average atomic mass is the weighted average of the masses of all naturally occurring isotopes of an element, taking into account their abundance. The mass number, on the other hand, represents the total number of protons and neutrons in the nucleus of an atom, and it is a whole number.
The mass number is the total number of protons and neutrons in an atom's nucleus. Relative atomic mass is the weighted average mass of all the isotopes of an element, taking into account their natural abundance. Average atomic mass is the weighted average mass of an element's isotopes in a given sample, considering their abundance in that sample.
Calcium-40: The atomic number of calcium is 20 and the number of neutrons is always the difference between the atomic mass and the atomic number.
Describe the reactivity of halogens