- #1
quickzx
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Hey guys I've got a question and I am not sure how to go about answering it without looking up a table of characteristics of elements!
Niobium has an atomic radius of 0.1430nm and a density of 8.57g/cm^3. Determine wheather it has an FCC or BCC crystal structure?
Now i think you have to use the equation p=nA/VcNa
p=density
n=number of atoms associated with each unit cell
A=atomic weight
Vc= volume of unit cell
Na= Avogadro's number
but to use the equation you need to know if it is an BCC or FCC structure so you know which n value to use then inturn how to get Vc.
so my question is how do i go about this type of problem??
Thanks !
Niobium has an atomic radius of 0.1430nm and a density of 8.57g/cm^3. Determine wheather it has an FCC or BCC crystal structure?
Now i think you have to use the equation p=nA/VcNa
p=density
n=number of atoms associated with each unit cell
A=atomic weight
Vc= volume of unit cell
Na= Avogadro's number
but to use the equation you need to know if it is an BCC or FCC structure so you know which n value to use then inturn how to get Vc.
so my question is how do i go about this type of problem??
Thanks !