In numericals,we use Z values-1 for sc,2 for bcc and 4 for fcc, but in this given question:

Potassium crystallises in a bcc lattice,hence the coordination number of potassium metal is 8. Why is it so?

Question

In numericals,we use Z values-1 for sc,2 for bcc and 4 for fcc,
but in this given question:
Potassium crystallises in a bcc lattice,hence the coordination
number of potassium metal is 8 Why is it so?

Anshika Shukla · Accepted Answer

Z stands for the number of atoms in a unit cell not for the
coordination number Hence in Bcc lattice the potassium crystal
have coordination number 8 but the value of Z is 2

In numericals,we use Z values-1 for sc,2 for bcc and 4 for fcc, but in this given question: Potassium crystallises in a bcc lattice,hence the coordination number of potassium metal is 8. Why is it so?

In numericals,we use Z values-1 for sc,2 for bcc and 4 for fcc, but in this given question:

Potassium crystallises in a bcc lattice,hence the coordination number of potassium metal is 8. Why is it so?