Atomic Emission Spectrum Flashcards

(5 cards)

1
Q

AES

A

wavelengths of light emitted by an element in its gaseous state when it absorbs energy

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2
Q

How are atomic emission spectra produced

A
  1. Electron in a GROUND STATE ABSORBS energy from a source and jumps to an EXCITED STATE
  2. Electron in excited state is UNSTABLE
  3. Electron falls back down to ground state, EMITTING energy in the form of LIGHT
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3
Q

Why are AES useful?

A

help identify unknown elements bc each element has a different spectrum and no two have the same

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4
Q

Continuous spectrum

A

all colors of rainbow (white)

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5
Q

Line spectrum

A

a few distinct colors (mix together)

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