IGNOU PHE 13 2026 - A monovalent metal has a bcc structure and its lattice parameter is&nb

Question

A monovalent metal has a bcc structure and its lattice parameter is $1.5\text{ \AA}$ . Calculate its Fermi energy.

29 Jan 2026

Answer :

Word Count : 310

For a bcc monovalent metal, the number of atoms per unit cell is 2. The lattice parameter is (a = 1.5 , \text{Å} = 1.5 \times 10^{-10} , \text{m}). The volume of the unit cell is: [ V_\text{cell} = a^3 = (1.5 \times 10^{-10})^3 = 3.375 \times 10^{-30} , \text{m}^3 ] The number density of electrons (n) is the number of electrons per unit volume. For a monovalent metal, there is 1 conduction electron

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