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## Homework Statement

By using the Bohr model of the atom:

whats the lowest energy transition from the n=2 to n=1

state in Hydrogen (Z=1)

## Homework Equations

En = -13.6eV*Z2/n2

## The Attempt at a Solution

En = -13.6eV*Z2/n2

n=2 -> n=1 for hydrogen (Z=1)

E2= -13.6eV*12/22 =-3.4 eV

E1= -13.6eV*12/12 = -13.6 eV

deltaE = x1 – x2 = -3.4 + 13.5 = 10.2 eV

So 10.2 eV is the lowest energy transition from n2 to n1 right?

Does the constant change with elements?