Question

calculate the number of atoms in 120gm of calcium?​

Answer 1

Answer:

$120 \div 20 \times 6.023 \times {10}^{23}$

$6 \times 6.023 \times {10}^{23}$

Explanation:

no of atoms =(given mass/atomic mass)×(avogadro number)

Answer 2

Answer:

120 \div 20 \times 6.023 \times {10}^{23}120÷20×6.023×10

23

6 \times 6.023 \times {10}^{23}6×6.023×10

23

Explanation:

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