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 ${\left(2\right)}^{4}$ 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.