Atomic energy levels

In an energy level diagram, the level "n = 3" refers to which energy state?

• First excited state

• Second excited state

• Third excited state

The energy level "n = 1" is called the ______ state.

What is meant by an atom in 'ground state'?

• All electrons in their lowest possible energy levels

• All electrons in the n = 1 energy level

• The atom is on the ground

• The atoms has lost an electron

What kind of transition is shown in the picture?

• Ascending

• Descending

• Fluorescence

• Incandescence

How does an electron transition to a higher energy state?

• Absorbs energy

• Releases energy

• Magic

• Incandescence

What energy is required to make the transition shown in the diagram?

• 13.6 eV

• 1.51 eV

• 12.09 eV

• 3.4 eV

What type of transition is shown in the diagram?

• Ascending

• Descending

• Fluorescence

• Incandescence

When an electron in an atom is excited by a photon, what do we know about the energy of the photon?

• Must exactly match the difference between energy levels

• Must be greater than the difference between energy levels

• Must be lesser than the difference between energy levels

• Must have the same energy as the higher energy level

When an electron in an atom is excited by an electron, what do we know about the energy of the incident electron?

• Must exactly match the difference between energy levels

• Must be greater than the difference between energy levels

• Must be lesser than the difference between energy levels

• Must have the same energy as the higher energy level

When an electron transitions down to a lower energy state, what do we know about the energy of the photon released?

• It has energy exactly equal to the difference between energy levels

• It has the same energy as the higher energy state

• It has the same energy as the lower energy state