Standard Books Chemistry Bohr's Model MCQ Question with Solution

The radius of first Bohr's orbit for hydrogen is 0.53 Å. The radius of third Bohr's orbit would be

A

0.79 Å

B

1.59 Å

C

3.18 Å

D

4.77 Å

Option D

The radius of the nth orbit in a hydrogen atom is given by rₙ = r₁ × n². For the third orbit, r₃ = 0.53 × 3² = 0.53 × 9 = 4.77 Å.

Found an issue with this question?

The maximum number of electrons in a subshell is given by the expression

What is the energy in joules associated with the fifth orbit of a hydrogen atom if the energy associated with the first orbit is -2.18 × 10^(-18) J?

Which combinations of statements about the quantum mechanical model of the atom are correct?

According to the de Broglie equation, what is the wavelength of an electron with a kinetic energy of 2.0 × 10^−25 J and mass 9.1 × 10^−31 kg?

STANDARD Chemistry Bohr's Model MCQ Question