Which of these discoveries contradict components of Dalton’s atomic theory? Check all of the boxes that apply.

What is the polyatamic ion of thiosulfate

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?