A crystal lattice has 27 atoms. Each atom has a mass of 3.5x10^-25 kg. The density of the crystal is 9.2x10^3kgm^-3.
What is the shortest distance between the centres of two adjacent atoms? @phi

Question

faiqraees · Answer

@raffle_snaffle

faiqraees · Answer

V= 8x³
D = M/V
V= M/D
V = 27M/D
8x³= 27x3.5x10^-25 /9.2x10^3
What's wrong here?

raffle_snaffle · Answer

what equation are you using?

faiqraees · Answer

I mentioned the equations

faiqraees · Answer

Should I explain how I got the equations?

raffle_snaffle · Answer

what is Volume of a sphere? Equation?

faiqraees · Answer

Volume of a lattice its a cube

faiqraees · Answer

Volume = length³

raffle_snaffle · Answer

but it wants to know the distance between the atoms.

faiqraees · Answer

yeah so we will then divide the length by 2

raffle_snaffle · Answer

we don't know the dimension of the cube or where the atoms are inside the cube.

raffle_snaffle · Answer

we are relying on the atoms to tell us where they orbit inside the cube.

faiqraees · Answer

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