#### Question

Estimate the average mass density of a sodium atom assuming its size to be about 2.5 Å. (Use the known values of Avogadro’s number and the atomic mass of sodium). Compare it with the density of sodium in its crystalline phase: 970 kg m^{–3}. Are the two densities of the same order of magnitude? If so, why?

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#### Reference Material

Solution for question: Estimate the Average Mass Density of a Sodium Atom Assuming Its Size to Be About 2.5 Compare It with the Density of Sodium in Its Crystalline Phase: 970 Kg M–3. Are the Two Densities of the Same Order of Magnitude concept: Dimensional Formulae and Dimensional Equations. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science)