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Chapter 38: Q.28 (page 1115)

I What is the radius of a hydrogen atom whose electron is bound by0.378eV ?

Short Answer

Expert verified

r6=1.9nm

Step by step solution

01

Given information

We can start the solution with expression for energy in nth state for hydrogen atom

02

Calculation

En=-13.6(eV)n2

n2=-13.6(eV)En (Express n2)

localid="1650738237508" n=-13.6(eV)-0.378(et)((-)sign of Enbecause energy in any atom is negative)

n≈6

localid="1650739244089" rn=n2aB(radiusisnthstate

r6=1.9nm

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