Mechanical Engineering - Engineering Materials - Discussion
Discussion Forum : Engineering Materials - Section 5 (Q.No. 6)
6.
In a unit cell of a body centred cubic space lattice, there are __________ atoms.
Discussion:
5 comments Page 1 of 1.
Pazhanivel said:
8 months ago
Yes, It's 2 atoms.
Abhay said:
4 years ago
SC - 8.
BCC - 9.
FCC - 14.
HCP - 17.
BCC - 9.
FCC - 14.
HCP - 17.
Yadav said:
7 years ago
Yes @Ashu.
Answer should be 2.
Answer should be 2.
Ashu said:
8 years ago
Answer should be 2 atom.
Subhajit said:
9 years ago
9 atoms belong to the BCC unit cell. One at the centre and 8 at the corners of the cube. But actually, the unit cell has 2 atoms. Each corner atom is shared by eight unit cells, so one unit cell gets 1/8th of the atom at each corner. The central atom is the sole property of the BCC unit cell. So number of atoms in one BCC unit cell is = 1 + 8 * 1/8 = 2.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers