Chapter F, Problem B.1E

Interpretation Introduction

Interpretation:

Number of beryllium atoms present in $\text{0}\text{.210}\text{g}$ has to be calculated.

Concept Introduction:

The total number of atoms that is present in any sample of substance can be calculated if the mass of the sample is known and the mass of one atom of the sample is known.  This can be given by the formula as shown below;

    $\text{Total}\text{number}\text{of}\text{atoms(N)}=\frac{\text{mass}\text{of}\text{sample}}{\text{mass}\text{of}\text{one}\text{atom}}$