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it is the sum of the protons and neutrons present in the nucleus of the atom.
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∙ 12y ago
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What is the number determined by the average mass of naturally occurring atoms of a given element?
I believe it is a mole
Atomic mass is determined by the number of protons plus the number of?
Atomic mass is determined by the number of protons and neutrons in an atom's nucleus.
What is an atoms mass number?
neutrons + protons = mass number
What Make up 50 percent of the atomic mass of the nucleus?
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
How is a number of moles of an element determined from a known mass?
The number of moles is mass in g/molar mass in g.
How can an atoms number of neutrons be determined?
Mass number-Atomic Number= Number of neutrons
Why must the number of atoms in a substance be determined using mass and not by counting?
Atoms are too small to count and there are too many of them.
What is the number determined by the average mass of naturally occurring atoms of a given element?
I believe it is a mole
What determines the atomic number of a substance?
The atomic number is the number of protons in the nucleus of an atom, while the atomic mass is the total mass of the nucleus (both protons and neutrons)
How do you calculate the atomic weight of fluorine if the mass of 8.46.10 to the 24 atoms of fluorine is 266.889?
Atomic weight of fluorine = 6,022 141 78.1023 (Avogadro number) . 266,889 (the mass of atoms)/8,46.1024 (the number of atoms). The IUPAC 2005 atomic weight of fluorine is 18,998 403 2(5).
Atomic mass is determined by the number of protons plus the number of?
Atomic mass is determined by the number of protons and neutrons in an atom's nucleus.
What is an atoms mass number?
neutrons + protons = mass number
What Make up 50 percent of the atomic mass of the nucleus?
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
An element is determined by the number of?
An element can be identified by the number of protons in the nucleus of its atoms.
How is the number of moles determined from a known mass?
Number of moles = Total mass/Molar mass
What determins the mass number of nitrogen?
The mass number of a nitrogen atom is determined by the mass of the nucleus. As it is the relative mass, it is equal to the combined number of protons and neutrons in the nucleus of the atom. For example, the most common isotope of nitrogen contains seven protons and seven neutrons, giving it a mass number of 14. Some atoms of nitrogen have an extra neutron, which gives a mass number of 15.
How is a number of moles of an element determined from a known mass?
The number of moles is mass in g/molar mass in g.
