All Questions
5
questions
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Will an electron release energy when it is added into an atom for which electron affinity value is negative (endothermic)?
According to my understanding, when an electron is added into an atom, it emits energy in the form of photons because it is a form of de-excitation or relaxation. This is when electron affinity will ...
- 11
2
votes
1
answer
36
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Why don't the delocalised electrons in a metal emit light when they hit an atom and change their velocity very quickly (i.e. accelerate)
We know that in metals there is a sea of delocalised electrons which can freely travel around the lattice of metal ions and that these delocalised electrons move around at large speeds, sometimes ...
- 531
0
votes
0
answers
34
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How do you calculate intensity given the energy of a wave?
I’m a bit confused when it comes to calculating intensity versus energy of a wave.
If I’m given a wave with an energy of 1 eV, how do I calculate its intensity ? I know intensity is usually measured ...
- 101
0
votes
4
answers
2k
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Why aren't we affected by radium?
1)We have radium clocks, watches, wrist bands and many things which glow because of radium but we know that radium is radioactive so why isn't it harmfull for us when in bands, watches etc.
2)Does it ...
- 1,925
1
vote
3
answers
2k
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Why doesn't a stationary electron lose energy by radiating electric field (as per coulomb's law)?
If an electron in a universe constantly generates an electric field why does it not get annihilated ? I am confused because I read that an accelerating charge radiates and loses energy. So, why won't ...
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