41 Do Now

What is the term for the specific energies that electrons can have in an atom?

• Energy levels

• Valence shells

• Orbitals

• Quantum numbers

Which particle is emitted or absorbed when an electron transitions between energy levels?

• Proton

• Neutron

• Photon

• Electron

What is the name of the process when an electron moves from a higher energy level to a lower energy level and releases energy?

• Absorption

• Emission

• Ionization

• Excitation

What is the process called when an electron absorbs energy and moves to a higher energy level?

• Emission

• Absorption

• Reflection

• Transmission

What is the formula for the energy of a photon?

• Planck's constant

• Boltzmann constant

• Avogadro's number

• Speed of light

What is observed when electrons in atoms transition between energy levels and emit photons?

• Continuous spectrum

• Absorption spectrum

• Emission spectrum

• Reflection spectrum

What do the dark lines in an absorption spectrum represent?

• Emitted photons

• Absorbed photons

• Reflected photons

• Scattered photons

Which of the following best describes a spectral line?

• A continuous range of colors

• A single color or wavelength observed in a spectrum

• A region with no light

• A reflection of light

What is the main cause of spectral lines in atomic spectra?

• Movement of protons

• Electron transitions between energy levels

• Nuclear decay

• Chemical reactions