Which Statement Is Not Correct? in Atomic Mass Units (Amu

question 139

Multiple Choice

Which statement is not correct? In atomic mass units (amu or u) , ________

• A)the mass of an electron, proton, or neutron is approximately 1 u.
• B)the mass of a proton or neutron is approximately 1 u, and the mass of an electron is approximately 0 u.
• C)the mass of an atom is approximately equal to the number of protons and neutrons in the nucleus of the atom.
• D)the mass of a carbon-12 atom is exactly 12 u.
• E)the mass of an oxygen-16 atom is approximately 16 u.

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