How many electrons are in the outermost energy level of a neutral
Fluorine atom?

Who is better, messi or cristiano, i need this for a chemistry class. asap

Chemistry worksheet - i am not sure what they are asking for exactly?

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon