Light Emission Spectra and Electron Energy Levels in Atoms

Light Emission Spectra and Electron Energy Levels in Atoms

Assessment

Interactive Video

Physics, Chemistry, Science

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video explains how each element emits a unique emission spectrum due to the arrangement of electrons and their energy levels. Using the Bohr model, it describes how electrons absorb energy, move to excited states, and release energy as photons when returning to ground states. The energy of these photons determines their color in the visible spectrum, with higher energy photons having shorter wavelengths. The unique spectra of elements, akin to fingerprints, are used for identification.

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What determines the unique emission spectra of each element?

The temperature of the element

The size of the atom

The arrangement of electrons and their energy levels

The number of protons in the nucleus

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when an electron absorbs energy?

It moves to a higher energy level

It remains in the same energy level

It moves to a lower energy level

It emits a photon

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the energy of a photon related to its wavelength?

Exponentially proportional

Not related

Inversely proportional

Directly proportional

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color of light is associated with higher energy photons?

Red

Green

Blue

Violet

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which end of the spectrum is associated with longer wavelengths?

Violet

Blue

Red

Green

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when electrons drop in multiple steps from an excited state?

They release a single high-energy photon

They release multiple lower-energy photons

They absorb more energy

They remain in the excited state

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are light spectra used in science?

To determine the speed of light

To identify elements and substances

To measure temperature

To calculate atomic mass

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