Verified Solution • 2025–26 Session moderate

QNEET-2020-Ch-686: NEET 2020 Chemistry - Class 12 NEET-2020-Ch-686 Solution: An element has a body centered cubic (bcc) structure with a…

An element has a body centered cubic (bcc) structure with a cell edge of 288 pm. The atomic radius is: 34×288 pm\frac{\sqrt{3}}{4} \times 288\ \text{pm} 43×288 pm\frac{4}{\sqrt{3}} \times 288\ \text{pm} 24×288 pm\frac{\sqrt{2}}{4} \times 288\ \text{pm} 42×288 pm\frac{4}{\sqrt{2}} \times 288\ \text{pm}

Multiple Choice Options

  • A 24×288{{\sqrt 2 } \over 4} \times 288 4 2 _ _ _ 288 pm
  • B 43×288{{4 } \over \sqrt 3} \times 288 3 _ 4 _ _ 288 pm
  • C 42×288{{4 } \over \sqrt 2} \times 288 2 _ 4 _ _ 288 pm
  • D 34×288{{\sqrt 3 } \over 4} \times 288 4 3 _ _ _ 288 pm

Step-by-Step Verified Solution

For BCC, lattice 3 a = 4 r r = 3 a 4 So, r = 3 _ 288 4

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