Polonium is the only metal that forms a simple cubic crystal. Which is incorrect about Polonium? A. The coordination number is 6. B. The packing of atoms is more efficient than fcc and bcc C. The number of atom per unit cell is one. D. It is less denser than bcc and fcc.

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Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.