3D.4 Flashcards

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1
Q

what is a ground state

A

the lowest energy level of a system

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2
Q

what is excitation

A

an energy state for a system that is higher than its ground state

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3
Q

electrons can become excited by?

A
  1. absorbing a photon with the right amount of energy

2. when the atoms collide with other particles

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4
Q

what is the de-excitation of an electron

A

it is when an electron goes down from its excited state to its ground state releasing energy in a form of a photon

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5
Q

what is the ionizing energy

A

the minimum energy an electron is required to have to leave the atom from its ground state

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6
Q

what is the line spectrum

A

it is a series of individual lines showing the frequency present in each light source

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7
Q

how can you split a non-monochromic light

A

using a diffracting grating in which the diffraction is dependent on the wavelength

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8
Q

what is intensity

A

the amount of energy per unit area

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9
Q

what is the formula for intensity

A

power/area

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