Elements in the same family have similar properties because the have the same number of elecrtons in the energy level.

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out