A copper sulfate solution contained 0.100 moles of copper sulfate dissolved in 0.500 dm3 of water.
Calculate the mass of copper sulfate in 30.0 cm3 of this solution.
Relative formula mass (Mr): CuSO4 = 159.5

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.

The answer is celsius 

Sorry i dont understand the question can you rephase it?

Answer(2) electrons;