Question

⚜️The number of atoms present in one mole of an element is equal to Avogadro number .Which of the following elements contains the greatest number of atoms?
A) 4g He
B) 46g Na
C) 0.40g Ca
D) 12 g He
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Answer 1

Answer:

d 12 g He

Explanation:

For comparing number of atoms, first we calcualte the moles as all are monoatomic and hence, moles ×NA= number of atoms . Hence 12 g He contains greatest number of atoms as it possesses maximum number of moles.