Q5) A semiconductor has an energy gap E,- 1.40 eV. If the electron mass and hole mass are 0.5x 10-31kg and 2.5 x 10-31 kg , respectively at T = 300-K, determine:
1. The position of the intrinsic Fermi level with respect to the middle of the energy gap.
2- The intrinsic concentration of charge carriers.
(17.5 Marks)

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom