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What is The Mass Number of an atom is obtained by totaling the number?
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∙ 6y ago
The mass number of an atom is obtained by totaling the number of protons and neutrons.
Erica Lakin
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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.
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 mass number of an atom is obtainede by totaling the number of?
Protons and neutrons.
What total number is the mass number of an atom obtained by?
Add the Neutrons and Protons. The electrons are irrelevant in the mass number.
How do you find the number of neutrons from the mass number?
Atomic mass is the number of protons in an atom mass number is the number of protons plus neutrons in an atom the number of neutrons would equal the mass number minus the atomic number.
What is used to find the mass of an atom?
The mass of an atom is obtained dividing the atomic weight of an isotope by the Avogadro number.
What three things can the periodic table tell you about an element?
NameAbbreviationAtomic Number (number of protons = number of electrons)Number of neutrons in various isotopesAtomic massValenceGroup
If an element has an atomic number of 45 and an atomic mass of 92 the number of protons it has is?
The atomic number always gives the number of protons or electrons. The neutrons are obtained by subtracting the number of protons from the atomic mass. In this example, since 45 is the atomic number, this element has 45 protons. since the mass is 92, the number of neutrons is 92-45= 47. However, this is not really true because the element with 45 as atomic number is rhodium and it has a mass of 103 u and hence a total of 58 neutrons.
What is the new element formed after the alpha decay occurred?
AlphaThe atomic number goes down by two and the atomic mass number goes down by four.Beta-The atomic number goes up by one and the atomic mass number stays the same.Beta+The atomic number goes down by one and the atomic mass number stays the same.
In order to calculate the number of neutrons you must subtract the from the?
Number of neutrons = Mass number - atomic number
How do you find out the mass number?
Mass number = Number of protons + number of neutrons
