I am given a sample of an unknown metal X. The density of the metal is 8.90g/cm3. X-ray diffraction studies determine that the packaging of the metal is face centered cubic, and they also measure the radius of X to be 128pm. Find the identity of X.

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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.