Fluorine has an atomic number of 9, how many electron shells does it have?

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

What mass of glucose is produced when 54g of water react with carbon dioxide