The main focus of green chemistry is "why generate pollution if there is a greener alternative sing the major principles of green chemistry, discuss now Canada's pulp and paper industry applies these principles to the paper making process to become more environmental responsible.

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!