CBSE Class 11-science Answered
The ionisation energy of gaseous Na(sodium) atoms is 495.80 kJ/mol. The lowest possible frequency of light that can ionise a Na(sodium) atom is how much?. Please explain the process in detail.
Asked by Pragnya Kar | 28 May, 2014, 12:22: PM
Expert Answer
E = h ?
where h = Plancks constant = 6.626 x 1034 J
? = reqd. frequency
E = 495.8 x 103 J
? = E /h
? = 495.8 x 103 / 6.626 x 1034
? = 74.83 x 10-31
Answered by Prachi Sawant | 28 May, 2014, 05:38: PM
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