Ncert Exercises & Solutions

An ionised H-molecule consists of an electron and two protons. The protons are separated by a small distance of the order of angstrom. In the ground state:

(a)	the electron would not move in circular orbits.
(b)	the energy would be \(2^{4}\) times that of a H-atom.
(c)	the electron's orbit would go around the protons.
(d)	the molecule will soon decay in a proton and a H-atom.

1. (a, b)
2. (a, c)
3. (b, c, d)
4. (c, d)

(2) Hint: The orbit of the electron depends on the force acting on it.

The protons are separated by a small distance of the order of angstrom. In the ground state, the electron would not move in circular orbits. The electrons orbit would go around the protons.

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