1. Tardigrade
  2. Question
  3. Chemistry
  4. The radius of the second Bohr orbit for hydrogen atom is: (Planck's Const. h =6 . 6262 × 10-34 Js; mass of electron =9 . 1091 × 10-31 Kg charge of electron e =1 .60210 × 10-19 C; permittivity of vacuum .(ϵ0)=8 ⋅ 854185 × 10-12 Kg -1 m -3 A 2)

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Q. The radius of the second Bohr orbit for hydrogen atom is:
(Planck's Const. $h =6 . 6262 \times 10^{-34}\, Js$;
mass of electron $=9 . 1091 \times 10^{-31}\, Kg$
charge of electron $e =1 .60210 \times 10^{-19} C$;
permittivity of vacuum
$\left.\left(\epsilon_{0}\right)=8 \cdot 854185 \times 10^{-12}\, Kg ^{-1}\, m ^{-3} A ^{2}\right)$

JEE MainJEE Main 2017Structure of Atom

Solution:

$r= a_{0} \frac{n^{2}}{Z}= 0.529\times4$

$=2.12 \,\mathring{A}$