Question

The atomic mass of calcium is 40 u. What will be the number of calcium atoms in 400 U of Calcium.
${10}$
${10}^{ - 1}$
${10}^{ - 2}$
${10}^{2}$
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Answer 1

Answer:

calcium atoms in 0.4 u of calcium are 6.023 x10²¹ atoms. The Brainliest Answer! ∴ The number of atoms in 0.4 grams of Calcium is 6.022 * 10²¹ .

Answer 2

Explanation:

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