An element \'X\' (At. Mass = 40 g `mol^(-1)`) having f.c.c structure has unit cell edge length of
Channel: Doubtnut
Date: 2020-01-03

An element \'X\' (At. Mass = 40 g `mol^(-1)`) having f.c.c structure has unit cell edge length of 400 pm . Calculate the density of \'X\' and the number of unit cells in 4 g of \'X\' . `(N_(A) = 6.022 xx 10^(23) mol^(-1))`.