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Which is atomic mass unit |
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Answer» An atomic mass UNIT is defined as a mass EQUAL to ONE twelfth the mass of an atom of carbon-12. The mass of any isotope of any ELEMENT is expressed in relation to the carbon-12 standard. For example, one atom of helium-4 has a mass of 4.0026 amu. An atom of sulfur-32 has a mass of 31.972 amu. |
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