Question

please answer the question

Answer 1

no. of atoms in 1 mole of helium =
6.023 × 10²³
no. of atoms in 100 moles =

$\bold{\green{6.023 \times {10}^{25} }}$
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Answer 2

1 is right answer

no. of atom= moles × Avogadro no.

Avogadro no. = 6.023×10²³
Moles = 100

No. of atom =100×6.023×10²³