Question

In hydrogen atoms, what is the physical significance of the state for which n = infinity and E = 0

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Answer 1

In hydrogen atom the electron revolves around the nucleus in stable energy levels.

The corresponding energy for the respective energy levels where n = 1,2,3,4 ... etc.

For infinity energy level n = infinity

n = principle quantum number

E_{​​​​​​n} = - 13.6 (Z^{​​​​​​2}/n^{​​​​​​2)}

Z = atomic number = 1

n = 1,2,3...etc

E_{​​​​​n} = o (where n = infinity)

Potential energy: the electron faraway from oppositely charged nucleus which do not experience the attraction of nucleus hence the potential energy = 0.

Hydrogen atom looses an electron and it turns afrom atom to ion.

H (g) - e​​​​​​- H⁺   (g) atom turns into ion

Ionisation energy: the amount of energy required to n = infinity energy level is called as ionisation energy.

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