A crystalline solid of pure substance has a face - centred cubic structure with a cell edge of 400 pm. If the density of the substance in the crystal is `"8 g cm"^(-3)`, then the number of atoms present in 128 g of the crystal is

A crystalline solid of a pure substance has a face – centred cubic structure with a cell edge of 400 pm. If the density of the substance in the crystal is 8 g cm^(-3) , then the number of atoms present in 256 g of the crystal is N xx 10^(24) . The value of N is ____________.

A crystalline solid of a pure substance has a face-centred cubic structure with a cell edge of 400 pm. If the density of the substance in the crystal is 8 g cm^(-3) , then the number of atoms present in 256g of the crystal is N xx 10^(24) . The value of N is

A crystalline solid of a pure substance has a face-centred cubic structure with a cell edge of 400 pm. If the density of the substance in the crystal is 8 g cm^(-3) , then the number of atoms present in 256g of the crystal is N xx 10^(24) . The value of N is

An element has a body-centred cubic (bcc) structure with a cell edge of 288 pm . The density of the element is 7.2 g//cm^(3) . How many atoms are present in 208 g of the element ?

An element has a body centred cubic structure with a cell edge of 288 pm. The density of the element is 7.2 g/ cm^3 . How many atoms are present in 208 g of the element?