Doesn't the atom in ground state radiate?

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Main Question or Discussion Point

According to textbooks, an atom in ground state doesn't radiate. Yet I got some other idea after reading Wu Ta-you's theoretical physics book. I hold the viewpoint that the atom does radiate, and at the same time it absorbs energy from heat radiation in its environment. The energy it radiates out and absorbs in balance. Am I correct or am I wrong? I eagerly appreciate everyone's reply. (For details, please visit <deleted>)
 
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  • #2
Vanadium 50
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The site you linked to is full of nonsense. Believe your textbooks.
 
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  • #3
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Thanks for your reply, though it wasn't what I expected.
Don't you think in a real world, the atom will absorb energy from the heat radiation in its environment?
 
  • #4
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An atom in the ground state can absorb energy from the environment including thermal radiation. Once it has done so it will be excited and will no longer be in the ground state. An excited atom can radiate and go to a lower energy state, but an atom in the ground state cannot radiate since there is no lower energy state.

We do not discuss topics that are outside the professional scientific literature, so we cannot discuss the incorrect theory in your deleted link. Thread closed.
 
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