6. Nucleus is :
(a) positively charged
(b) negatively charged
(c) neutral
(d) charge keeps on changing
7. Electron in atom are held in atom due to :
(a) atomic force
(b) nuclear force
(c) coulombs force
(d) none fo these
8. An electron can Never be found inside nucleus’, this statement is according to :
(a) Bohr’s model
(b) Bernoulli’s equation
(c) Heisenberg uncertainty principle
(d) None of these
9. The ionization energy of hydrogen atom is 13.6 eV. The ionization energy of helium atom would be :
(a) 13.6 eV
(b) 27.2 eV
(c) 54.4 eV
(d) 62.8 eV
10. In Bohr model the hydogen atom, the lowest orbil corresponds to :
(a) Intinite energy
(b) Zero energy
(c) The minimum energy
(d) The maximum energy
Related Posts
Atomic Physics » Exercise - 19. The ionization energy of hydrogen atom is 13.6 eV. The ionization energy of helium atom would be : (a) 13.6 eV (b) 27.2 eV (c) 54.4 eV (d) 62.8 eV - Atomic Physics » Exercise - 112. If 13.6eV energy is required to ionize the hydrogen atom the energy required to remove the electron form n=2 state is : (a) Zero (b) 3.4eV (c) 6.8eV (d) 10.2eV
- Atomic Physics » Exercise - 114. Ionization energy of hydrogen atom in ground state is : (a) 13.6 J (b) 13.6 eV (c) 13.6 MeV (d) 13.6 V
- Atomic Physics » Exercise - 120. The atomic number is equivalent to which of the following ? (a) The number of neutrons in the atom (b) The number of protons in the atom (c) The number of nucleons in the atom (d) The number of ?–particles in the atom
- Atomic Physics » Exercise - 17. Electron in atom are held in atom due to : (a) atomic force (b) nuclear force (c) coulombs force (d) none fo these