Sodium metal crystallizes in a body centred cubic lattice with the cell edge ${{\rm{a = }}4.29\mathop {\rm A}\limits^ \circ }$. The radius of sodium atom is :

${\rm{ }}1.8574\;\mathop {\rm A}\limits^ \circ $

$2.8574\mathop {\rm A}\limits^ \circ $

$3.8574\mathop {\rm A}\limits^ \circ $

NEET UG CHEMISTRY MCQ: SOLID STATE

1 Easy

1 of 1

Application +4 | -1

Sodium metal crystallizes in a body centred cubic lattice with the cell edge

{\mathrm{a = }4.29\mathop \mathrm{A}\limits^ \circ }

. The radius of sodium atom is :

View answer and explanation

Correct option: A

\mathrm{ }1.8574\;\mathop \mathrm{A}\limits^ \circ

Option A (

\mathrm{ }1.8574;\mathop \mathrm{A}\limits^ \circ

) is correct because it's the calculated radius for a BCC lattice given the edge length.