24/25 Energy Levels

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Energy levels are defined by the

on the Periodic Table

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Electrons orbit the nucleus of an atom in specific

levels.

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Electrons behave as

that are constantly moving as they spin and orbit the nucleus.

Multiple Choice

Where are you most likely to find electrons?

• Floating freely in space.
• In the outer shell of a molecule.
• In the nucleus of an atom.
• In the electron cloud of an atom.

Dropdown

When an electron ​

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(take in) energy, it moves to a ​

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energy level. This higher energy level is called an ​

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state.

Dropdown

An excited electron will eventually return to its original ​

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energy level (​

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state).This process ​

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energy in the form of a ​

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of light.

Fill in the Blanks

A

is a particle of light emitted when an electron goes down an energy level

​

​longer

​less

Match

Match the following

• blue/violet light

• red/orange light

• Higher frequency

• Smaller frequency

Larger energy transitions emit

Smaller energy transitions emit

shorter wavelengths and greater energy

longer wavelengths and less energy

• Larger energy transitions emit

• Smaller energy transitions emit

• shorter wavelengths and greater energy

• longer wavelengths and less energy

Drag and Drop

Visible light are the colors our eyes can detect. In order of lowest frequency to highest frequency, those colors are:

​

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, orange, ​

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, green, blue, ​

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and violet

Drag these tiles and drop them in the correct blank above

red

yellow

indigo,

black

white

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The atomic ____ ____ (two words) is a unique pattern of light emitted by an element when its atoms are excited, like a fingerprint that identifies the element.

Multiple Choice

Scientists can use the emission spectrum to determine the composition of substances.

• True

• False

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Humans can only see a small portion of this spectrum called

Open Ended

Give one real world example of electrons emitting photons.