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 What is the mass number of a neutron?

Answer A neutron has a mass number of 1.0086649156 ± 0.0000000006 u, slightly more than the mass of a proton. In electronvolts, the mass is 939.56536 ± 0.00008 MeV.References:Particle Data Group; Review... Read More »
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What is the mass of Avogadro's number of atoms?

Avogadro's number is 6.02 x 10 to the 23rd power. It refers to the number of molecules or atoms in the quantity known as a mole. The mass of the mole is determined by the atomic weight of the compo... Read More »
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What type of front is formed when a cool air mass displaces a warm air mass?

Fronts occur where two different air masses meet. When cool air displaces warm air, it's called a cold front. Cold fronts are able to keep up their intensity over great distances and tend to bring ... Read More »
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How to Convert Mass to Number of Particles?

To find the number of particles in a substance from its mass, you could consider the mass of a single particle. This value is so small, however, that chemists instead base these calculations on the... Read More »
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How to Use Avogadro's Number to Find Mass?

Avogadro's Number is approximately equal to 6.022 x 10^23. This quantity is the basis for another unit of measure commonly used in chemistry called the mole. One mole is a quantity equal to Avogadr... Read More »
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