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Calculate the radius of Bohr's fifth orbit for hydrogen atom. Also calculate the radius of third orbit of He^(+) ion |
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Answer» SOLUTION :For H-atom, `r_(N) = 0.529 xx n^(2) Å`. For 5th ORBIT, n = 5 `:. r_(5) = 0.029 xx 5^(2) = 13.225 Å= 1.3225nm` For hydrogen like particles `r_(n) = (n^(2))/(Z) xx a_(0)` (`a_(0)`= Bohr radius `= 0.529 Å`) For `He^(+), Z = 2`. For 3rd orbit, n = 3 `:. r_(3) = (3^(2))/(2) xx 0.529 Å = 2.3805 Å = 0.23805nm` |
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