1 poin 12. Which scientist said that electrons exist in discrete energy levels?
A. Thomson
B. Rutherford
C. Bohr
D. Dalton

What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow

Compare and contrast solutions and suspensions