An element having an atomic radius of 0.14 nm crystallises in a fcc unit cell. What is the length of side of the cell ?

Question

An element having an atomic radius of 0.14 nm crystallises in a fcc unit cell. What is the length of side of the cell ?

An element having an atomic radius of 0.14 nm crystallises in a fcc unit cell. What is the length of side of the cell ?
A. 0.56 nm
B. 0.24 nm
C. 0.96 nm
D. 0.4 nm

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
For fcc unit cell , `r=(sqrt2)/(4)a`
`rArr " " 0.14=(sqrt2)/(4)a`
`a=(4xx0.14)/(sqrt2)=0.396nm=0.4nm`

4 views Answered 2023-02-05 15:29