Structure of At...

The ratio of the difference in energy between the first and the second Bohr orbit to that between the second and the third Bohr orbit is

If the speed of electron in the Bohr’s first orbit of hydrogen atom be x, then speed of the electron in the 3^rd orbit is

For an electron if the uncertainty in velocity is ∆v , the uncertainty in its position ( ∆x ) is given by

The configuration 1s²2s²2p⁵3s¹ shows

Which of the following has more unpaired d-electrons?

The energy of a photon is given as ∆E /atom = 3.03 × 10⁻¹⁹ J atom⁻¹. Then the wavelength (λ) of the photon is.

The wave number of first line of Balmer series of hydrogen is 15200 cm^-1. The wave number of first Balmer line of Li²⁺ ion is

What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition, n = 4 to n = 2 in the He⁺ spectrum?

In a Bohr model of an atom, when an electron jumps from n = 3 to n = 1, how much energy will be emitted?

At 200^oC, the velocity of hydrogen molecule is 2.0 × 10⁵ cm/sec. In this case the de Broglie wavelength is about