Explain how can you determine the atomic mass of an unknown metal if you know its mass density and the dimensions of unit cell of its crystal.

How can you determine the atoic mass of an unknown metal if you know its density and the dimension of its unit cell ? Explain.

Define the term density. Give its units and dimensions.

Explain how a vector can be resolved into its rectangular components in three dimensions.

How can you determine that a dividing cell you are seeing under a microscope is of an aniaml or a plant?

Density of a unit cell is same as the density of the substance. If the density of the substance is known, number of atoms or dimensions of the unit cell can be calculated . The density of the unit cell is related to its mass(M), no. of atoms per unit cell (Z), edge length (a in cm) and Avogadro number N_A as : rho = (Z xx M)/(a^3 xx N_A) A metal X (at. mass = 60) has a body centred cubic crystal structure. The density of the metal is 4.2 g cm^(-3) . The volume of unit cell is