1.

What is the value of the Bohr's radius for the first orbit of hydrogen atom?

Answer»

\(rn=\frac {52.9( n2 ) }{Z}pm\)

For first orbit of H-atom, n = 1

Atomic number (z) of H-atom = 1

∴r1 \(= \frac{52.9(1) ^2}{1}\)

= 52.9 pm = 5.29 × 10-11m



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