Copper crystallizes in a face-centered cubic lattice (the Cu atoms are at the lattice points and at the face centers). If the density of the metal is 8.96 g/cm3, what is the unit cell edge length in pm? × 10 pm

The unit cell edge lenght in pm is equal to 361 pm

Explanation:

Data provided:

ρ=Copper density=8.96 g/cm3

Atomic mass of copper=63.54 g/mol

Atoms/cell=4 atoms (in theory)

Avogadro's number=6.02x atoms/mol

Since copper has a cubic structure, its cell volume is equal to , which can be obtained through the relationship:

cell volume=

Substituting the values:

cell volume=

clearing, we have:

a=

We convert from centimeter to picometer, 1cm=1xpm

a=

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.