One atom of nickel weight` 9.75xx10^(-23) g.` Calculate the atomic mass of nickel.

An element having a density 11.2"g cm"^(-3) forms a fcc lattice with edge of 4xx10^(-3) cm. Calculate the atomic mass of the element.

Calculate the mass 10^20 atoms of C.

Calculate the mass of an atom of silver.

Calculate the mass of one atom of oxygen.

Silver metal crystallise with a face centred cubic .lattice. The length of unit cell is found to be 4.077 xx 10^(-8) cm . Calculate the atomic radius and density of silver (Atomic mass of Ag= 108 u, NA= 6.02 x 10^(23) mol^(-1) .

One atom of an element x weighs 6.643 xx 10^(-23)g . Number of moles of atoms in its 20kg is :

Silver crystallines in fcc lattice. If edge length of the cell is 4.077xx10^-8cm and density is 10.5 g cm^-3 . Calculate the atomic mass of silver.

Calculate the number of atoms in 46g of He.

Silver crystallises in fcc lattice. If edge length of the cell is 4.04x10^(-8) cm and density is 10.5g cm^(-3) , calculate the atomic mass of silver.