The ionisation energy of the hydrogen atom is about:
A3.40 eV
B10.2 eV
C1.51 eV
D13.6 eV
Answer & Solution
Correct answer: D. 13.6 eV
1. This is the energy needed to free the electron entirely.
2. It is measured from the ground state.
3. Its value is 13.6 electron volts.
_Source: NCERT Class 12 Physics Part II, Chapter 12, Atoms._
Related questions
The lowest energy state of an atom is called the:The energy of the emitted photon equals the difference between the:By Bohr's third postulate, a transition to lower energy emits a:Allowed angular momenta are integral multiples of h divided by:Bohr's second postulate quantises which quantity?Bohr called the stable non-radiating orbits the:By Bohr's first postulate, an electron in a stable orbit emits:Bohr set out his theory of the atom in how many postulates?