Question : Which German chemist and physicist proposed that an aromatic compound must have an odd number of pairs of electrons, Which can mathematically be written as 4n+2 (n=0,1,2,3, etc.) in 1931?

Question : Which French chemist was one of the first scientists to synthesise organic compounds such as formic acid, methane and acetylene from their elements?

Question : Electrons in the highest energy level of an atom are called ________.

Question : In which year did Antoine Lavoisier publish 'Methods of Chemical Nomenclature', which included the rules for naming chemical compounds that are still in use today?

Question : In the early 1800s, who discovered that each chemical element is made up of a unique type of atom and that atoms differ by their mass?