As mentioned in this week’s notes on page 4, the electrons of an atom can occupy different energy shells within the atom (similar to how the planets all occupy different orbits around the sun). electrons prefer to be in the lowest energy shell possible (the ground state); however, they can gain energy and jump to a higher shell by absorbing light or being excited by an electric current. in accordance with the conservation of energy, if an electron drops from a higher energy level to a lower one, this must emit a photon (particle of light) with energy equal to the energy difference of the shells. a balmer series transition is any transition of an electron from some higher energy shell down to the second lowest energy shell (n=2) in hydrogen. looking at image (b) above, what is the wavelength of a photon emitted during the balmer transition from the n=3 shell in hydrogen? (remember nm is short for a nanometer, for example 656 nm = 656 x 10-9 meters) 656e-9 meters 486e-9 meters 434e-9 meters 410e-9 meters
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Physics, 22.06.2019 17:30
You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.
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Physics, 23.06.2019 02:00
Explain the difference in reactivity of the elements based on their electron configurations.
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Physics, 23.06.2019 10:00
1. what is the si unit of emf? 2.a complete series circuit consists of a 12.0 v battery, a 4.70 ω resistor, and a switch in the closed position. the internal resistance of the battery is 0.30 ω. what does an ideal voltmeter read when placed across the resistor?
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Physics, 23.06.2019 12:30
Wich of yhe following is true a mass drpendent on gravity and weight is dependent on gravity
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As mentioned in this week’s notes on page 4, the electrons of an atom can occupy different energy sh...
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