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NEUTRONS AND PROTONS are counted in an atom to determine it's mass number.
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Can the mass number of an element be used to determine the number of electrons in an atom?
No. The mass number can be used, however, to determine the number of neutrons. Electrons can only be determined by knowing the atom's charge.
Can you use the mass number of an element to determine the number of electrons in an atom?
Mass number = number of protons + number of neutrons Number of electrons = number of protons = mass number of an isotope - number of neutrons
What is the mass number of a atom?
the mass number is number of protons in an atom, plus the number of neutrons.
What do you get if you subtract the atomic number from the mass number for a particular atom?
mass no - atomic no = number of neutrons in an atom.
If an atom has an atomic number of 8 and a mass of 18 how many protrons are in the atom?
It has 8 protons. The atomic number of an atom = the number of protons. The mass number is not needed in this problem. The mass number is the number of protons + number of neutrons.
What are counted in an an atom to determine mass number?
Atomic Mass: protons AND neutrons atomic number: just protons
How do you determine an atom's mass number?
mass number= no. of protons + no. of neutron
What does the number of neutrons determine?
they determine the atomic mass of the atom
What does the mass number determine?
The Number Of Protons & Neutrons In An Atom.
Can the mass number of an element be used to determine the number of electrons in an atom?
No. The mass number can be used, however, to determine the number of neutrons. Electrons can only be determined by knowing the atom's charge.
How do you determine the number of nuetrons in an atom?
Number of Neutrons = Mass number - Atomic Number
What determine the mass of a atom?
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.
Is it true that the mass number can be used to determine the number of electrons in an atom?
no --- atomic number
What determine the atom mass?
Essentially an atom's mass is determined by its number of protons and neutrons, as mass of electrons is so minuscule relative the nucleus.
What must you know about an atom to determine its mass number?
The number of protons and neutrons in its' nucleus.
How you can determine the number of protons electrons and neutrons an atom has from an atom's mass number and its atomic number?
To determine the number of protons, look at the atomic number. The number of electrons is also the atomic number.To find the number of neutrons subtract the atomic number from the Atomic Mass number.
How do you determine the atomic mass number of any atom?
protons plus neutrons
