What is an easy way to determine the amount of valence electrons that an element will have?
A. The valence electrons are the same as the period number.
B. The valence electrons are the same as the atomic number.
C. The valence electrons are the same as the 1's place of the group number.
D. All of the above.

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring