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IMPORTANT
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An electron revolves around a nucleus of charge . In order to excite the electron from the state to , the energy required is . Then atomic number is
(a)
(b)
(c)
(d)

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Important Questions on Atoms and Nuclei
EASY
JEE Main
IMPORTANT

EASY
JEE Main
IMPORTANT

EASY
JEE Main
IMPORTANT

HARD
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IMPORTANT

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JEE Main
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EASY
JEE Main
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MEDIUM
JEE Main
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MEDIUM
JEE Main
IMPORTANT
