What is the sum of the number of neutrons and | vedclass

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(D) The isotopes of hydrogen are protium $(^1H)$,deuterium $(^2H)$,and tritium $(^3H)$.The heaviest isotope is tritium ($^3H$ or $^3_1H$).In tritium,t

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$3$

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(D) The isotopes of hydrogen are protium $(^1H)$,deuterium $(^2H)$,and tritium $(^3H)$.The heaviest isotope is tritium ($^3H$ or $^3_1H$).In tritium,the number of protons $(Z)$ is $1$.The mass number $(A)$ is $3$.The number of neutrons $(N)$ is calculated as $A - Z = 3 - 1 = 2$.The sum of the number of neutrons and protons is $N + Z = 2 + 1 = 3$.

What is the sum of the number of neutrons and protons in the heaviest isotope of hydrogen?

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