Author Question: The air that you breathe doesn't emit visible light indicates that most of the electrons of its ... (Read 138 times)

B · **on:** Jul 29, 2018

The air that you breathe doesn't emit visible light indicates that most of the electrons of its atoms are

A) in the ground state.
B) excited to metastable states.
C) relatively cool.
D) electrically neutral.
E) relatively far apart.

Question 2

If light in a spectroscope were passed through a star-shaped opening instead of a thin slit, spectral lines would appear as

A) lines of poorer resolution.
B) stars.
C) blobs of no definite shape.