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How do the isotopes hydrogen-1 and hydrogen-2 differ?
Hydrogen-2 has one proton; hydrogen-1 has none.
Hydrogen-2 has one neutron; hydrogen-1 has none.
Hydrogen-2 has one more electron than hydrogen-1.
Hydrogen-2 has two protons; hydrogen-1 has one.


Sagot :

it is AExplanation because a+w=a

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