Aspecific type of physical change is a change.
a. chemical
b. bond
c. size
d. phase
i think it`s d. but i`m not sure.

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!