Electron configuration

How many colors are there in the visible light spectrum? What are they?

• 7. Red, orange, yellow, green, blue, pink, violet

• 10. Red, orange, yellow, green, blue, indigo, violet, pink, grey, magenta.

• 8. Red, orange, yellow, green, blue, indigo, violet, pink

• 7. Red, orange, yellow, green, blue, indigo, violet

What is the rule for filling the energy levels?

• Electrons fill them from the lowest energy to the highest

• Electrons fill them whatever level of energy they desire

• Electrons fill them from the highest energy to the lowest

Higher frequency-> higher energy

• True

• False

An atomic emission spectrum is produced when:

• Electrons are excited to higher electronic energy levels

• Electron transitions take place from a lower to a higher electronic energy level

• Electrons move from electronic energy levels n=1 to n=2

• Electron transitions take place from a higher to a lower electronic energy level

The electron transition between which two atomic energy levels emits the most energy?

• Sixth to fourth

• First to fourth

• Second to seventh

• Third to first

Electron transitions in the hydrogen emission spectrum to levels n=1, n=2, and n=3 generate lines in which parts of the electromagnetic spectrum respectively?

• Respectively: n=1 in infra-red; n=2 in ultra-violet; n=3 in visible

• Respectively: n=1 in visible; n=2 in infra-red; n=3 in ultra-violet

• Respectively: n=1 in ultra-violet; n=2 in infra-red ; n=3 in visible

• Respectively: n=1 in ultra-violet; n=2 in visible; n=3 in infra-red

Which electron transition in the hydrogen atom emits visible light?

• n = 3 to n = 2

• n = 1 to n = 2

• n = 2 to n = 3

• n = 2 to n = 1

Shorter wavelength -> Lower frequency

• True

• False

As the energy levels increase in energy they get _______________.

• None of the answers is right

• closer together

• All of the answers are right

• further apart

What is the maximum number of electrons that can hold the n=3 electronic energy level in an atom?

• 2

• 31

• 50

• 18