GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a mole of atoms of H
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a mole of atoms of He
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They would have the same number of atoms
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No
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Detailed explanation-1: -We can see that the number of hydrogen atoms is just double that of helium atoms. Hence, the number of atoms in one mole of hydrogen gas is double the number of atoms in one mole of helium gas due to its nature of existence in a gaseous state as a diatomic molecule.
Detailed explanation-2: -1.4. For one gram atomic weight of hydrogen with atomic weight of one gram, one mole of hydrogen contains 6.022 × 1023 hydrogen atoms.
Detailed explanation-3: -The number of atoms or other particles in a mole is the same for all substances. The mole is related to the mass of an element in the following way: one mole of carbon-12 atoms has 6.02214076 × 1023 atoms and a mass of 12 grams.
Detailed explanation-4: -(b) A mole of hydrogen has six more atoms than a mole of lead.
Detailed explanation-5: -Hence, 1g lithium has the largest number of atoms.