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The "mass defect" -- the fact that the mass of an isotope is less that the sum of its nucleons is due to the fact that when nucleons combine (either by fusion, for elements with atomic number less than iron[A=26]; or fission for elements with atomic number greater than iron) there is a release of energy due to the nuclear binding force, which source of the "mass defect" you correctly identified. The energy released as a result of the binding of the nucleons is equivalent to a small amount of mass of the matter -- Einstein's famous equation: E=mc^2, so the energy release E
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What represents most of an atom's mass?
The nucleus of an atom represents most of an atom's mass.
An atom has no mass?
It does have a mass.
Is the mass of an iron atom any different from the mass of a copper atom?
Yes, the mass of an iron atom is different from the mass of a copper atom. The mass of an iron atom is approximately 56 atomic mass units, while the mass of a copper atom is approximately 63.5 atomic mass units. Therefore, there is a difference of about 7.5 atomic mass units between the two.
What is atomic mass of an atom?
It's the mass of the atom, usually specified in atomic mass units where one amu is 1/12th the mass of a carbon-12 atom.
Which of the following particles is used to determine the mass of an atom?
Mass of an atom is determined by the no. of protons+ no. of neutrons in the atom.
What adds mass to an atom but does not affect its charge?
a neutron
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.
Does the proton affect the mass of an atom?
Yes, significantly so. One proton is approximately one atomic mass unit.
What is the mass of an atom found by?
Mass of an atom = Mass of proton + Mass of neutron
Which would have more of an affect on the mass of an aluminum atom removing ten electrons or one neutron?
69
What prolonged deficiency would affect thyroid?
A deficiency in the element Iodine in the diet.
What represents most of an atom's mass?
The nucleus of an atom represents most of an atom's mass.
Why do you say electrons most affect an atom's size while protons and neutrons most affect an atom's mass?
because the electron are on the out side and orbit around the nucleus (aka protons and neutrons) and take up the space
Is an oxygen atom have twice the mass of a sulphur atom?
No. On average a sulfur atom is twice the mass of an oxygen atom.
An atom has no mass?
It does have a mass.
Where is he mass of an atom concentrated?
99.9% of the mass of an atom is located in the nucleus
What do neutrons add to an atom?
Neutrons add MASS to an atom.
