In Mendeleev\'s time, the most sophisticated piece of equipment in the chemistry

Question

In Mendeleev's time, the most sophisticated piece of equipment in the chemistry laboratory was the balance. Atomic weights were derived by comparing the weight of the element to its oxide, thereby getting the ratio of the element's weight to that of oxygen. What other piece of information would Mendeleev have used to get the atomic weights he needed to develop his periodic table?

A. The formula of the oxide

B. The number of protons

C. The number of neutrons

D. The number of electrons  

A. The formula of the oxide

B. The number of protons

C. The number of neutrons

D. The number of electrons  

Explanation / Answer

The formula of Oxide

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