JEE Main 2020 (Online) 2nd September Morning Slot | Structure of Atom Question 133 | Chemistry

Hydrogen has three isotopes (A), (B) and (C). If the number of neutron(s) in (A), (B) and (C) respectively, are (x), (y) and (z), the sum of (x), (y) an (z) is :

JEE Main 2020 (Online) 8th January Evening Slot

MCQ (Single Correct Answer)

-1

The radius of the second Bohr orbit, in terms of the Bohr radius, a₀, in Li²⁺ is :

$${{2{a_0}} \over 9}$$

$${{2{a_0}} \over 3}$$

$${{4{a_0}} \over 9}$$

$${{4{a_0}} \over 3}$$

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