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Grade: 11

                        

The IE of a hydrogen-like bohr atom is 4 Rydberg. What is the radius of the first orbit of the atom?

4 years ago

Answers : (1)

Vikas TU
12274 Points
							
From the energy formulae,
|-13.6z^2/n^2| = 4R
13.6z^2 = 4*1.01 * 10^-6
on solving 
z = 2.
Now radius,
r = 0.529 * 1^2/z = 0.529/2 = 0.25 Angstrom or
                                        = 0.25 * 10^-10 meter.
 
4 years ago
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