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What does it mean when an average atomic mass is in parentheses?
Wiki User
∙ 8y ago
For elements with no stable isotopes, the mass number of the isotope with the longest half-life is in parentheses.
Wiki User
∙ 8y ago
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Atomic mass of an atom is called?
What do you mean? Atomic mass of an atom is the weighted average mass of all the naturally occurring isotopes of that element, measured in amu (=atomic mass unit). I do not know how do you want to call it, it is just atomic mass, average atomic mass, mass of an atom, atom's mass...
What is the mass of thallium?
I assume you mean the atomic mass. Its atomic mass is 204.3833g/mol
What is beryllium mass number?
Beryllium Atomic number: 4 Atomic Mass: 9.012
What deos atomic mass mean?
After the IUPAC rules, Atomic Mass is an expression used only for the mass of isotopes (in atomic mass units).
What does amu mean in the atomic mass of an element aside of it?
AMU= atomic mass unit
Atomic mass of an atom is called?
What do you mean? Atomic mass of an atom is the weighted average mass of all the naturally occurring isotopes of that element, measured in amu (=atomic mass unit). I do not know how do you want to call it, it is just atomic mass, average atomic mass, mass of an atom, atom's mass...
What is a weighted average of the masses of all of the naturally occurring isotopes of an element?
The mean Atomic Mass.
What does 22.99 mean in element Na 11?
22.99 is sodiums relative atomic mass. This is found by making an average of all the different isotopes of sodium
What is the mass of thallium?
I assume you mean the atomic mass. Its atomic mass is 204.3833g/mol
What is the difference in mass and weight?
The atomic mass may be considered to be the total mass of protons, neutrons and electronStandard atomic weight refers to the mean relative atomic mass of an element in the local environment of the Earth's crust and atmosphere
What is beryllium mass number?
Beryllium Atomic number: 4 Atomic Mass: 9.012
What deos atomic mass mean?
After the IUPAC rules, Atomic Mass is an expression used only for the mass of isotopes (in atomic mass units).
What does amu mean in the atomic mass of an element aside of it?
AMU= atomic mass unit
What do you mean by the atomic mass of an atom?
That's 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.
How do you find the atomic mass of C7H8?
You mean molecular mass or moler mass, not atomic mass! Add up the atomic masses of all the atoms in the molecule.
What is the atomic mass of technetium?
I assume you mean the atomic mass. Its atomic mass is 98.91g/mol
Does atomic number and atomic mass mean the same thing?
atomic mass and mass number are differernt because atomic mass mean mass of whole atom which mean mass of proton,neutron and electron while mass number is number of proton and neutron only.zahid ullah paf college risalpur
