Question

One mole of an element contains which of the following?

A. 6.02 atoms

B. 6.02 x 1023 atoms

C. 6.02 x 1023 grams

D. 12 atoms

Answer 1

B. 6.02 x 10^23 atoms

Answer 2

Answer : The correct option is, (B)
`6.02* 10^(23)` atoms.

Explanation :

Mole : It is defined as the amount of substance that contain the same number of units as there are atoms present in exactly 12 grams of carbon-12.

Avogadro's number : It is defined as the number of atoms molecules present in a mole of any substance.

The Avogadro's number is represented as,
`6.022* 10^(23)`

The relationship between a mole and Avogadro number are :

As, 1 mole of a substance contains
`6.022* 10^(23)` number of atoms, molecules or ions.

Hence, the correct option is, (B)
`6.02* 10^(23)` atoms.