Chemistry- Light and EM Radiation Practice Flashcard

Front

What type of electromagnetic radiation has the most energy?

Back

Ultraviolet radiation has the most energy among infrared, ultraviolet, microwaves, and radiowaves.

Front

What must an electron do to change from ground state to an excited state?

Back

An electron must absorb energy to change from ground state to an excited state.

Front

What occurs when an electron emits light from an atom?

Back

Light is emitted when an electron drops from a higher to a lower energy level.

Front

What happens when an electron moves from n=4 to n=2?

Back

The electron releases energy when it moves from n=4 to n=2.

Front

Order the visible light colors from longest wavelength to shortest wavelength.

Back

Red, Orange, Yellow, Green, Blue, Indigo, Violet.

Front

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

Back

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

Front

Define electromagnetic radiation.

Back

Electromagnetic radiation is a form of energy that travels through space at the speed of light and includes visible light, radio waves, X-rays, and more.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 3.00 x 10^8 meters per second.

Front

What is the formula for calculating the energy of a photon?

Back

The energy of a photon can be calculated using the formula E = hf, where E is energy, h is Planck's constant, and f is frequency.

Front

What is the significance of the ground state of an electron?

Back

The ground state is the lowest energy state of an electron in an atom, where it is most stable.