Lab4: PostLab Flashcard

Front

What type of electromagnetic radiation carries the least energy?

Back

Microwaves

Front

Which wave in the electromagnetic spectrum has the greatest energy?

Back

Wave 4

Front

What causes the lines in the emission spectrum for a helium gas-filled lamp?

Back

Energy given off when the electron falls back from higher energy excited levels to lower energy ground levels.

Front

Which wave in the electromagnetic spectrum would travel the furthest through space?

Back

Wave 3

Front

What are the two mystery gases in the unknown mixture at the bottom?

Back

Gas A & Gas D

Front

Define electromagnetic radiation.

Back

Electromagnetic radiation is a form of energy that travels through space at the speed of light and includes a range of waves such as radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is the relationship between wavelength and energy in electromagnetic waves?

Back

As the wavelength increases, the energy decreases; shorter wavelengths have higher energy.

Front

What is the emission spectrum?

Back

The emission spectrum is a spectrum of the electromagnetic radiation emitted by a source, showing the specific wavelengths of light emitted by electrons transitioning between energy levels.

Front

Explain the concept of energy levels in atoms.

Back

Energy levels are the fixed distances from the nucleus of an atom where electrons can exist, with each level corresponding to a specific energy.

Front

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

Back

When an electron falls from a higher energy level to a lower energy level, it emits energy in the form of light.