1)Differentiate Between Space Lattice and Unit Cell 2)What is the physical Difference between Diamond and Glass?Explain in d etail. 3)Differentiate between HCP in 2-D and 3-D 4)Calculate the no of particle in BCC ,FCC and Simple Cubic. 5)Which is Thicker FCC or BCC,Explain .Also explain octahedral void. 6)Explain Para and ferro magnetism. 7)Explain Non stoichimetric defects in detail.