Determine the number of atoms per unit cell i | vedclass

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Question

(B) In a body-centered cubic $(BCC)$ unit cell,atoms are present at all the $8$ corners and one atom is present at the center of the body.Each corner

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(B) In a body-centered cubic $(BCC)$ unit cell,atoms are present at all the $8$ corners and one atom is present at the center of the body.Each corner atom contributes $1/8$ to the unit cell.Contribution from $8$ corners = $8 	imes (1/8) = 1$ atom.The atom at the center of the body belongs entirely to the unit cell,contributing $1$ atom.Total number of atoms per unit cell = $1 + 1 = 2$ atoms.Therefore,the correct option is $B$.

Determine the number of atoms per unit cell in a body-centered cubic $(BCC)$ unit cell.

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