Why is acid produced when the exhaled air is bubbles in the water?

What happens to the atomic radius when an elctron is lost

What type of reaction fuels the processes seen here?

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!