Ask your own question, for FREE!
Chemistry 9 Online
OpenStudy (anonymous):

How do elements change as you move down a column in the periodic table? The atomic radius decreases. The number of protons decreases. The atomic mass decreases. The electronegativity decreases.

OpenStudy (anonymous):

this is a hard question please help..

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!