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The mass number of an atom is obtain by totaling the number of what?
The mass number of an atom is obtained by totaling the number of protons and neutrons.
What is The Mass Number of an atom is obtained by totaling the number?
The mass number of an atom is obtained by totaling the number of protons and neutrons.
The mass number of an element is obtained by totaling the number of what?
Protons in each atom.
The number of an atom is obtained by totaling the number of?
The Atomic Mass number of an element is the sum of the protons and neutrons in the nucleus of an atom of that element.The relative atomic mass is the average atomic mass number of all the known isotopes of an element.
What is the atomic mass of this atom 19p and 20n?
To calculate the atomic mass of an atom, you would add the number of protons and neutrons together. In this case, the atom has 19 protons and 20 neutrons, totaling 39 nucleons. The atomic mass of this atom would be approximately 39 atomic mass units (amu).
How many nucleons does an oxygen with a mass number of 17 and an atomic number of 8 have?
There are no 'nucleons' in an Oxygen atom. You mean 'neutrons'. As all the mass of an atom is in its nucleus (made up of 'protons' and 'neutrons') and as the Atomic Number is the count of how many 'protons' there are, if you subtract the Atomic Number form the Atomic Mass, you get the number of 'nutrons'. 17-8=9.
Is this true that a normal atom of oxygen has a mass of 16 the isotope oxygen 18 and protons 18?
An atom of oxygen typically has 8 protons, 8 neutrons, and 8 electrons, giving it a mass number of 16. Oxygen-18, on the other hand, has 8 protons and 10 neutrons, totaling a mass number of 18.
What do you get when you change the mass number of an atom?
You can't change the mass number of an atom because the mass number is the number of protons which is the atom's atomic number I hope this helped :)
What is the mass number of sodium if the numbers are 11 and 12?
The proton number of Sodium is 11. The mass number is just under 23 (22.989...). This is because of the different isotopes of sodium and there scarcity.
What is the sum of protons and neutrons in an atom?
Mass number!:)
Mass number used to calculate the number of?
The mass number is used to calculate the number of nucleons in an atom. It represents the sum of protons and neutrons in the nucleus of an atom. By knowing the mass number, one can determine the approximate atomic mass of the atom.
Is atomic number the same as mass number?
Atomic number is the number of protons in the atom; atom mass is the total mass of the atom (usually neglecting the mass of the electrons because they have so little).
