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Standard XII

Chemistry

Formal Charge

The life time...

Question

The life time of an excited state in case of metastable state is

10^{- 8} s

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10^{- 3} s

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10^{- 6} s

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10^{- 12} s

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Solution

The correct option is B $10^{- 3} s$
Metastable state is an excited state of an atom or other system with a longer lifetime than the other excited states. However, it is a shorter lifetime than the stable ground state. Atoms in the metastable remain excited for a considerable time in order of $10^{- 3} s$

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The life time of an excited state in case of metastable state is

The correct option is B 10−3sMetastable state is an excited state of an atom or other system with a longer lifetime than the other excited states. However, it is a shorter lifetime than the stable ground state. Atoms in the metastable remain excited for a considerable time in order of 10−3s