Identify each of the four gas planets, then give information about
each planet.

Name the element in group 17, period 2. (periodic table)

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!