Question

What causes the lines in the spectrum for elements?

Answer 1

a)Atom B has lost some inner electrons.
B)The outer electron of atom B has moved to a lower energy state.
C)The outer electron of atom B has moved to a higher energy state
im not sure of this

Answer 2

I just did a few questions relevant to this, I am pretty sure its "C" :)

Answer 3

thank you tank you :)