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[The nucleus has more massive parts (protons and neutrons) than the surrounding electron cloud].
This is because 99.9999 % of the volume of space that the Atom occupies is Empty Space.
Below is another person's answer... longer and more complicated than mine. it was said to have a repeated answer.
The nucleus accounts for 99.9% of an atom's mass simply because neutrons and protons are much more massive than electrons.
Mass of proton: 6726 x 10^(-27) kg
Mass of neutron: 1,6749 x 10^(-27) kg
Mass of electron: 0,00091x10^(-27) kg
Even though the electron cloud accounts for most of the atom's area, a huge percentage of the cloud is empty space, and the electrons within it are minuscule to begin with. The highly dense nucleus contains most of the mass.
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∙ 13y ago
Wiki User
∙ 8y agoAtoms are composed of protons, neutrons, and electrons. The nucleus is made of protons and neutrons while electrons exist in a surrounding shell. A single proton or neutron is more than 1,700 times more massive than an electron.
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∙ 14y agoBOTH protons and neutrons make up the majority of the mass in an atom.
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∙ 14y agothe math term (Pie) 1840 times bigger than the electron.
Wiki User
∙ 9y agoMost of the mass of an atom comes from its nucleus, which is made up of protons and neutrons. Electrons have a negligible mass.
Wiki User
∙ 13y agomost of the mass is found in the nucleus.
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What information does the percent composition in an atom in a molecule give?
The relative amount of mass an atom contributes to a molecule
Which part of the atom contains more than 99 percent of its mass?
The protons and neutrons found in the nucleus are responsible for the majority of the atom mass while the much smaller electrons orbit the nucleus.
What represents most of an atom's mass?
The nucleus of an atom represents most of an atom's mass.
What would be the least molecular mass of a compound containing8 percent of sulfur by mass?
It must be 400, because the compound must contain at least one sulphur atom with atomic mass 32.
An atom has no mass?
It does have a mass.
Where can the most mass be found in an atom?
Essentially all of the atom's mass is in the nucleus. In the lightest atom, that of hydrogen, it's about 99.95 percent. In the heaviest naturally occurring atom, that of Uranium238, it's about 99.979 percent.
Over 99 percent of the mass of an atom is contained where?
Within the atom's nucleus.
What information does the percent composition in an atom in a molecule give?
The relative amount of mass an atom contributes to a molecule
What information does the percent composition of an atom in a molecule give?
The relative amount of mass an atom contributes to a molecule
Aproximately 99.9 percent of the mass of an atom is in the?
the nucleus (protons and neutrons)
What is 15 percent off 999 dollars?
15 percent off 999 dollars: $999 x 0.15 = $149.85
Is .999 percent the same as 99.9 percent?
.999 as a decimal is the same as 99.9%, However .999% is not the same as 99.9% where both are percentages.
What is the percent of 9.99?
999%9.99= 9.99 * 100%= 999%
What is 10 percent off of 999?
899.110% off of 999= 10% discount applied to 999= 999 - (10% * 999)= 999 - (0.10 * 999)= 999 - 99.9= 899.1
Which part of the atom contains more than 99 percent of its mass?
The protons and neutrons found in the nucleus are responsible for the majority of the atom mass while the much smaller electrons orbit the nucleus.
What is the mass of an atom found by?
Mass of an atom = Mass of proton + Mass of neutron
What is 15 percent of 6660.00 dollars?
$999
