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प्रश्न
The edge length of the unit cell of a body-centred cubic (bcc) crystal is 352 pm. Calculate the radius of the atom.
संख्यात्मक
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उत्तर
Given: a = 352 pm
For bcc crystal,
`sqrt (3) a = 4r`
∴ `sqrt (3) xx 352 = 4 xx r`
`r = sqrt (3) xx 352/4`
= 1.732 × 88 pm
= 152.4 pm
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States of Matter - Concept of Radius, Edge Length and Nearest Neighbour Distance
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