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11 grade chemistry others

Number of neutrons in a heavy hydrogen atom is:(A) 0(B) 1(C) 2(D) 3

Profile image of Aniket Singh
1 Year agoGrade
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1 Answer

Profile image of Askiitians Tutor Team
1 Year ago

The number of neutrons in an atom can be determined by subtracting the atomic number (number of protons) from the mass number (total number of protons and neutrons).

For a heavy hydrogen atom, also known as deuterium, the atomic number is 1 since it's still hydrogen but with an extra neutron. The most common isotope of hydrogen, which has just one proton and no neutrons, is often denoted as hydrogen-1 (or protium).

The isotope of hydrogen with one neutron is known as deuterium or hydrogen-2. Therefore, the correct answer is:

(B) 1