Chemistry, 07.03.2020 02:25 sariyamcgregor66321

Many metals pack in cubic unit cells. The density of a metal and length of the unit cell can be used to determine the type for packing. For example, platinum has a density of 21.45g/cm3 and a unit cell side length a of 3.93 Å. (1 Å = 1. 10-8 cm.)
A) How many platinum atoms are in exactly 1 cm3?
B) How many unit cells are in exactly 1 cm3?
C) How many platinum atoms are there per unit cell?
D) The atoms/unit cell suggests that platinum packs as a unit cell.
E) What is the atomic radius of platinum?

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Many metals pack in cubic unit cells. The density of a metal and length of the unit cell can be used...