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Answer to Question #57398 in General Chemistry for chandan

Question #57398
a)
Calculate the ionisation energy of rubidium per atom, if light of wavelength 5.84

10

8
m
produces electrons with a speed of 2.450

10
6
ms

1
.
(5)
[
Hint:
Assume that the thres
hold frequency refers to the frequency corresponding to the
ionisation energy.]
b)
Assume that the electron in Li
2+
ion is in third orbit. Calculate
(5)
i)
the radius of the orbit, and
ii)
the total energy of the electron
[Hint:
Li
2+
ion also has at
omic spectra similar to hydrogen atom. while applying relevant
equations, use
Z
= 3
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