Explain how spectroscopy is used to determine the elements that are present in a star.

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

Ineed ! i have no clue how to do this problem.