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The mass of electrons is not excluded from Atomic Mass. The mass number of an isotope of an element excludes electrons because it is the sum of protons and neutrons.
From Wikipedia, "The atomic mass (ma) is the mass of a specific isotope, most often expressed in unified atomic mass units. The atomic mass is the total mass of protons, neutrons and electrons in a single atom."
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∙ 11y ago
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How many electrons and What is the atomic mass and number in chlorine?
17 electrons - atomic mass 35.5 and atomic number 17
Explain the difference between atomic mass and atomic number?
If fluorine has an atomic number of 9 and an atomic mass of 19 how many electrons does fluorine contain?
The number of electrons is always the same as the atomic number. That gives you the number of protons and electrons. The atomic mass has nothing to do with it. What is the atomic number? That is your answer.
How can the number of proton neutron and electron be calculated to get atomic number and atomic mass?
atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number
How you calculate the atomic mass?
the Atomic Mass number is the number of protons/electrons in an atom
How many electrons and What is the atomic mass and number in chlorine?
17 electrons - atomic mass 35.5 and atomic number 17
What is the atomic mass the same as?
The Atomic Mass is equal to the number of protons and electrons that an element has.
Explain the difference between atomic mass and atomic number?
How do you find electrons?
you can find electrons by subtract the atomic number and atomic mass.
The atomic mass of an atom is equal to the sum of numbers of what?
protons + electrons= atomic mass NUMBER, not the atomic mass.
Is atomic mass electrons?
We are not using electron mass. We measure atomic mass by Mass of neutrons and protons.
Why do protons and electrons aproximately equal a atomic mass?
Protons are much heavier (1800 X approx) than electrons! Atomic mass is due to the mass of the protons and neutrons only a very small % of atomic mass is due to electrons.
If fluorine has an atomic number of 9 and an atomic mass of 19 how many electrons does fluorine contain?
The number of electrons is always the same as the atomic number. That gives you the number of protons and electrons. The atomic mass has nothing to do with it. What is the atomic number? That is your answer.
How can the number of proton neutron and electron be calculated to get atomic number and atomic mass?
atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number atomic number is the amount of protons, equal to the atomic number, the electrons, minus the mass number
How do you calculate the atomic mass?
the Atomic Mass number is the number of protons/electrons in an atom
How you calculate the atomic mass?
the Atomic Mass number is the number of protons/electrons in an atom
Does fluorine contain 10 electrons?
it has 9 electrons atomic number= number of protrons and electrons and atomic mass-atomic number=neutrons
