alleryNumber of atoms in one mole of helium is:
A3.011 * 10^23
B1.204 * 10^24
C6.022 * 10^46
D6.022 * 10^23
Answer & Solution
Correct answer: D. 6.022 * 10^23
1. Helium is monatomic; one molecule = one atom.
2. One mole of helium contains 6.022 * 10^23 molecules.
3. Equivalently 6.022 * 10^23 atoms.
4. So the answer is 6.022 * 10^23 atoms.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 5 'Mole Concept and Stoichiometry'_
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