The electron energy in Hydrogen atom is given by
En = (-2.18 x 10-18)J
n
2
Calculate the energy required to remove an electron completely from n=3 orbit. What is the longest
wave length of light in cm. that can be used to cause this transition?
Answers
Answered by
2
Answer:
227.96
Explanation:
E
n
=(−2.18×10
−18
)n
2
joule
Energy required to remove an electron completely from n=2 orbit
E
=(−2.18×10
−18
)2
2
=−8.72×10
−18
8.72×10
−18
=
λ
hc
λ=
8.72×10
−18
6.626×10
−34
×3×10
8
=2.27958×10
−8
m
=227.96 A
o
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