Question

Electron goes to uper state the their time limit calculation

Answer 1

The Rydberg formula explains the different energies of transition that occur between energy levels. When an electron moves from a higher energy level to a lower one, a photon is emitted. The Hydrogen atom can emit different wavelengths of light depending on the initial and final energy levels of the transition. It emits a photon with energy equal to the difference of square of the final (nf) and initial (ni) energy levels.

Energy=R(1n2f−1n2i)

The energy of a photon is equal to Planck’s constant, h=6.626*10-34m2kg/s, times the speed of light in a vacuum, divided by the wavelength of emission.

E=hcλ

Combining these two equations produces the Rydberg Formula.

1λ=R(1n2f−1n2i)

The Rydberg Constant (R) = 10,973,731.6m−1 or 1.097×107m−1.

Answer 2

Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons.