The mass of one steel screw is $4.11 \mathrm{g}$. Find the mass of one mole of these steel screws. Compare this value with the mass of the Earth $\left(5.98 \mathrm{x} {10}^{24} \mathrm{kg}\right)$. Which one of the two is heavier and by how many times?

Raunak took $5$ moles of carbon atoms in a container and Krish also took $5$ moles of sodium atoms in another container of same weight.

Whose container is heavier?

Raunak took $5$ moles of carbon atoms in a container and krish also took $5$ moles of sodium atoms in another container of same weight.

Whose container has more number of atoms?

Fill in the missing data in the Table 

What is the SI prefix for the following multiple of a unit?

${10}^3$

What is the SI prefix for the following submultiple of a unit?

${10}^{-1}$

What is the SI prefix for the following submultiple of a unit?

${10}^{-2}$