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The Atomic mass if hydrogen us 1.008 amu. The reason that this value is not a whole number is that
A. The Mass of hydrogen is the sum of the masses of the protons and electrons in the atom
B. Hydrogen has more than one isotope
C. Hydrogen only exists as a diatomic molecule
D. The Mass of a proton is not exactly equal to 1 amu​

Respuesta :

Answer:

I'm pretty sure its c

Explanation:

samueladesida43

The atomic mass of hydrogen, which is 1.008 amu, is not a whole number because hydrogen has more than one isotope.

  • The atomic mass of an element is got from the sum of the proton and neutron in its atom.

  • However, the atoms of some element exists in more than one isotope. Isotopes are atoms of the same element with same atomic number but different atomic masses.

  • The different atomic masses arise from the difference in the number of neutrons of each isotope. Hydrogen has more than one isotope.

  • The atomic mass of an element with more than one isotope is the weighted average of the mass numbers of the different isotopes of that element, hence, the resulting value cannot be a whole number.

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