1
answer
0
watching
308
views
11 Nov 2019
Many metals pack in cubic unit celis. The density of a metai and length of the unit cell can be used to determine the type for packing. For example, platinum has a density of 21.45 g/cm2 and a unit cell side length a of 3.93 (a) How many plainum atoms are in exactly 1 cm tb) How many unit celis are in exactly 1 em2 å21ese22 untcels (e) How many platinum atoms are there per unit celt? atomts) (d) The atoms/unit cell suggests that platium packs as a boty-centered unit cel Knowledge of the type of packing and side length a of the unit cell will aliom calcuiation of the omic radius, using one of the equations below. You may need to draw the unit cell to determine which formula to use to calouate the atomic radus. bd)' a' +2a fd 24ã
Many metals pack in cubic unit celis. The density of a metai and length of the unit cell can be used to determine the type for packing. For example, platinum has a density of 21.45 g/cm2 and a unit cell side length a of 3.93 (a) How many plainum atoms are in exactly 1 cm tb) How many unit celis are in exactly 1 em2 å21ese22 untcels (e) How many platinum atoms are there per unit celt? atomts) (d) The atoms/unit cell suggests that platium packs as a boty-centered unit cel Knowledge of the type of packing and side length a of the unit cell will aliom calcuiation of the omic radius, using one of the equations below. You may need to draw the unit cell to determine which formula to use to calouate the atomic radus. bd)' a' +2a fd 24ã
Beverley SmithLv2
18 Oct 2019