Hydrogen deuterium weighs about twice as much as anormal atom of hydrogen because:
A. it has an atomic number of 92.
B. it contains 6 protons and 8 neutrons.
C. it also contains a neutron in its nucleus.
D. its neutron weighs twice as much as its proton.
C. it also contains a neutron in its nucleus.
Explanation: A tiny number of hydrogen atoms (roughly 0.02 percent)also have a neutron in their nucleus. This form is called hydrogen deuterium. It weighs about twice as much as anormal atom of hydrogen because neutrons have about thesame mass as a proton. Chemists call such deviant formsof atoms isotopes.
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