Week 11 Bohr Atom & Spectral Lines Flashcards

1
Q

what can we say about a particle if it is trapped in some region by a potential

A

the wavelength of the particle will be quantised

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2
Q

what happens to an electron in an atom that moves down an energy level

A

It emits a photon of discrete energy equal to the energy difference between the original and new energy level

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3
Q

what happens to an electron in an atom that moves up in energy level

A

it absorbs a photon of discrete energy equal to the energy difference between the original and new energy level

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4
Q

what happens to photons that don’t have any exact energy required for change in energy level

A

they don’t interact with the system

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5
Q

what does the Hydrogen emission spectrum refer to

A

the wavelength of the electrons that are changing energy levels

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6
Q

what is the Bohr energy equation

A

E = -13.6eV / n^2

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7
Q

why is 13.6eV an important value

A

It is the ionisation energy of a H atom so the min energy required to move an electron from ground energy state to infinite energy state

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