Electronic Configuration Flashcards

0
Q

What do you do when you have a tube of hydrogen gas at a low pressure

A

Pass a high voltage through it to get a coloured light corresponding to different frequencies and wavelengths

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1
Q

How is the visible light spectrum observed

A

Passing white light into glass prism or diffraction grafting = rainbow

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2
Q

What are these coloured lines called when Hugh voltage is passed through

A

Emission spectra

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3
Q

What causes the lines on the emission spectra

A

Due to photons of energy being emitted when electrons from higer energy levels move to lower ones

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4
Q

What are small fixed amounts of energy called

A

Quanta carried by photons

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5
Q

When an electron absorbs the appropriate quantity of energy it

A

Becomes excited and moves form it’s ground state to a higher energy level

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6
Q

Energy is given out by he electrons when they

A

Move back to their lower state

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7
Q

Name all five series and where they fall to and lines produced

A
Lyman ---> n=1 ---> UV
Balmer ---> n=2 ---> visible 
Paschen ---> n=3 ---> IR
Brackett ---> n=4 ---> IR 
Pfund --> n=5 ---> IR
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8
Q

Neil bhors theory worked well with hydrogen but

A

Not good model for other atoms

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