Understanding Atomic Energy Levels

What particles are found in the nucleus of an atom?

• Neutrons and electrons

• Only protons

• Protons and neutrons

• Electrons and protons

What is the lowest energy level an electron can have in an atom called?

• Photon state

• Intermediate state

• Ground state

• Excited state

How can an electron move to a higher energy level?

• By gaining mass

• By absorbing a photon

• By emitting a photon

• By losing energy

What happens when an electron falls back to a lower energy level?

• It emits a photon

• It gains energy

• It absorbs a photon

• It loses mass

What is the result of an electron absorbing a photon with energy not matching any allowed energy levels?

• The electron emits a photon

• The electron absorbs all of the photon's energy

• The electron absorbs part of the photon's energy

• The photon passes through the atom

What is the term for the unique pattern of dark lines in the spectrum of an atom?

• Emission spectrum

• Absorption spectrum

• Energy spectrum

• Photon spectrum

What does the absorption spectrum of an atom indicate?

• The energy levels of the nucleus

• The mass of the atom

• The wavelengths of light the atom emits

• The wavelengths of light the atom absorbs

What happens to an electron if it absorbs more than zero eV energy?

• It becomes bound to the atom

• It remains in the same energy level

• It loses energy

• It becomes free from the atom

What is the energy level of an electron in a realistic atom model?

• Always positive

• Can be positive or negative

• Always zero

• Always negative

What is the term for the process of removing an electron from an atom?

• Absorption

• Ionization

• Excitation

• Emission