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Niobium crystallises in body centred cub...

Niobium crystallises in body centred cubic structure. Its density is 8.55g `cm^3` atomic mass is `93g "mol"^(-1)(N_A = 6.023 xx 10^(23))`
What is the edge length of Niobium?

A

`314.50` pm

B

`330.56` pm

C

`340.43` pm

D

`346.30` pm

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