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hi well c-12 has not actually been given a unit. we know that the 12 means that it is exactly 12 units (unknown to us) in c-12. generally things are compared in relation to the mass of a c-12 atom. Something might be 1.5 times bigger relative to c-12 giving us X with 18 units. To answer your question, the half of the mass of c12 is 6 units. like i said unit is unknown but it is only used as a relative to compare the mass of other atoms because taking the mass of any one atom is irrelevant.

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13y ago
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15y ago

6, and atom with no charge has the same amount of protons and neutrons. protons = atomic number. also mass number - atomic number = neutrons.

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13y ago

1/12 of atomis mass of carbon is equal to 1amu(Atomic Mass unit).

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8y ago

The answer is 1 and the atom would be a hydrogen atom.

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15y ago

atomic mass unit

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12y ago

1 atomic mass unit, or amu.

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Q: What is half the mass of a carbon 12 atom?
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Related questions

Mass of a carbon atom?

12


The mass of an atom compared to the mass of a carbon-12 atom is called the?

Isotope.


What is the mass number of carbon atom?

Carbon is a non metal element. Mass number of it is 12.


What is relationship between atomic mass and average atomic mass?

The average atomic mass is the ratio of the average mass of one atom of an element to one twelfth of the mass of an atom of carbon-12. It is, the mass of an atom of the substance, rescaled so that carbon-12 would have a mass of 12.


How many times lighter is a helium atom than carbon?

A helium-4 atom is just about 1/3 the mass of a carbon-12 atom.


Atomic mass of an element?

The atomic mass of an element is the relative mass of its atom as compared with the mass of a carbon-12 atom taken as 12 units.


What is the assigned atomic mass of carbon-12?

The atomic number of any carbon isotope is 6, the number of protons in the nucleus of any carbon atom, irrespective of its mass number.


Atom of element X has mass 5 times than that of Carbon-12 What is its atomic mass?

Mass of Carbon-12 = 12 amu 5times of mass of Carbon-12 atom = 5 x 12 = 60 amu So atomic mass of element X = 60 amu Rachel- www.examville.com ,tutor


What isotope of carbon has been chosen as the reference isotope for atomic mass units?

The atomic mass may be considered to be the total mass of protons, neutrons and electrons in a single atom (when the atom is motionless). Relative isotopic mass is the relative mass of a given isotope scaled with carbon-12 as exactly 12.


What is the atomic mass of an atom if its mass is approximately one third that of carbon 12?

The atomic mass number of an atom, if the atom's mass number is approximately equal to 0.33 that of carbon-12, would be 4. If the question is about actual masses rather than mass numbers, the mass of a helium-4 atom is about 4.00260 atomic mass units, while the mass of a carbon-12 atom is, by definition, exactly 12.000..... atomic mass units.


What is the atomic mass unit of a carbon atom?

Carbon is a non meta element. Atomic mass of it is 12.


What is 112 the mass of a carbon atom?

A carbon 12 atom has a mass defect of .098931 u. This number, the mass defect, represents the binding energy of the nucleus of the nucleus of the atom, and how energy has to be used to split this nucleus.