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The mass number of Potassium is 39 which means it has 20 neutrons.
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∙ 8y ago
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What does atomic mass do?
The atomic mass is equal to the number of protons plus neutrons. So if you know the atomic number then you can find out the number of neutrons Atomic # is the amount of Protons or Electrons Atomic Mass- Number of protons plus neutrons Atomic Mass-Atomic Number = Amount of neutrons
How many neutrons are in an isotope of lithium if it has an atomic mass of ten?
No. of neutrons=Atomic mass -Atomic No.=10-3=7 It has 7 neutrons.
What number is the atomic mass equal to?
Atomic mass is the number of protons and neutrons in an atom.
How is the number of neutrons in an atom found?
The number of neutrons can be calculated if the atomic number and mass number of an element is known. The number of neutrons = Mass number - atomic number.
What do you get when you subtract mass number from atomic number?
mass #-atomic#=# of neutrons
How does the atomic mass help you find the neutrons?
Atomic mass = mass of protons + mass of neutrons.
What does atomic mass do?
The atomic mass is equal to the number of protons plus neutrons. So if you know the atomic number then you can find out the number of neutrons Atomic # is the amount of Protons or Electrons Atomic Mass- Number of protons plus neutrons Atomic Mass-Atomic Number = Amount of neutrons
What does mass do?
The Atomic Mass is equal to the number of protons plus neutrons. So if you know the atomic number then you can find out the number of neutrons Atomic # is the amount of Protons or Electrons Atomic Mass- Number of protons plus neutrons Atomic Mass-Atomic Number = Amount of neutrons
How many protons neutrons and electrons are in k40?
K always has 19 protons, because that is what defines it as an element.40, the atomic mass is the sum of protons and neutrons. So if you subtract the number of protons from the atomic mass, you get the number of neutrons.40-19=21 neutrons
How many neutrons are in an isotope of lithium if it has an atomic mass of ten?
No. of neutrons=Atomic mass -Atomic No.=10-3=7 It has 7 neutrons.
What do you get when you subtract atomic number from atomic mass?
mass #-atomic#=# of neutrons
The correct symbol for the isotope of potassium with 22 neutrons is k 41 19?
An isotope of potassium with 22 neutrons has an atomic number of 19 and atomic mass of 41. The symbol is K with a subscript 19 and superscript 41.
What number is the atomic mass equal to?
Atomic mass is the number of protons and neutrons in an atom.
What is the atomic and mass number of potassium?
The atomic number is 19 and the mass number of its most abundant isotope K-39 is 39 (19 protons + 20 neutrons) while the mass of that isotope is 38.96371 a.m.u.The relative atomic mass of the element potassium, K, is 39.10 g/mole.
Atomic number of 2 and atomic mass of 4 how many neutrons?
To find the number of neutrons simply subtract the atomic number from the atomic mass. In this case there are two neutrons.
What is the number of neutrons in an atom affects the atomic what?
The number of neutrons in an atom can affect the atomic mass of an atom.
How is the number of neutrons in an atom found?
The number of neutrons can be calculated if the atomic number and mass number of an element is known. The number of neutrons = Mass number - atomic number.
