Unit 3 Electrons in Atoms Review

Front

What are radio waves?

Back

Radio waves are a type of electromagnetic radiation with wavelengths longer than microwaves, used in communication technologies.

Front

What is sodium's emission spectrum?

Back

The emission spectrum of sodium is the spectrum of light emitted when electricity passes through sodium gas, showing specific wavelengths of light.

Front

What happens when an electron moves to a higher energy level?

Back

When an electron moves from a lower to a higher energy level, it gains a certain amount of energy.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the complete range of electromagnetic waves arranged in order of increasing frequency.

Front

What occurs when atoms absorb energy?

Back

When atoms absorb energy, their electrons move to higher energy levels and emit light when returning to lower energy levels.

Front

Define wavelength.

Back

Wavelength is the distance between successive crests of a wave, typically measured in meters.

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye, with wavelengths between approximately 400 and 700 nanometers.

Front

What is the significance of the emission spectrum?

Back

The emission spectrum is significant because it helps identify elements based on the specific wavelengths of light they emit.

Front

What is the difference between continuous spectrum and emission spectrum?

Back

A continuous spectrum shows all wavelengths of light, while an emission spectrum shows only specific wavelengths emitted by an element.