Understanding Atomic Energy Levels

The video tutorial explains the structure of an atom, focusing on the role of electrons and their energy levels. It describes how electrons transition between these levels by absorbing or emitting photons, leading to the concepts of absorption and emission spectra. These spectra serve as fingerprints for identifying elements in distant astronomical objects. The tutorial also touches on the realistic energy levels of atoms and the concept of ionization.

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