Question

Sodium metal crystallises in a body-centred cubic lattice with the cell edge a = 4.29 Å . What is the radius of the sodium atom?

• A. 2.45 Å 
• B. 1.86 Å 
• C. 3.56 Å 
• D. 1.46 Å 

Answer 1

The correct option is B

1.86 Å 

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