Exploring Atomic Spectroscopy and the Bohr Model

What happens when an atom absorbs energy?

• It splits into smaller atoms.

• It loses electrons.

• It emits a photon.

• It becomes a different element.

What is the principle behind neon signs?

• Atoms losing electrons.

• Atoms absorbing and re-emitting energy as photons.

• Atoms becoming different elements.

• Atoms splitting into smaller atoms.

What is an atomic spectrum?

• A spectrum of sound waves.

• A single wavelength of light.

• A set of distinct wavelengths emitted by an atom.

• A continuous range of colors.

How many distinct wavelengths are in the visible spectrum of hydrogen?

• Four

• Eight

• Two

• Six

What does the Bohr model explain?

• The formation of molecules.

• The quantized energy levels of electrons in an atom.

• The splitting of atoms.

• The continuous spectrum of white light.

What does it mean when an electron is in its ground state?

• It is in a continuous spectrum.

• It is not part of the atom.

• It is at the lowest energy level.

• It is at the highest energy level.

What happens when an electron drops from a higher to a lower energy level?

• It emits a photon.

• It splits into smaller particles.

• It absorbs a photon.

• It becomes a different element.

What is the wavelength of the photon emitted when an electron in hydrogen drops from n=3 to n=2?

• 500 nm

• 600 nm

• 657 nm

• 700 nm

What is a flame test used for?

• To measure the temperature of a flame.

• To create fireworks.

• To split atoms.

• To identify metals by the color of light emitted.

How do creators of fireworks achieve different colored lights?

• By using different gases.

• By using shavings of different metals.

• By changing the temperature of the flame.

• By using different types of fuel.