1. An electron is excited to fouith energy level in an atom. It will


2. The wavelength of a spectral line for electron transition is inversely related to


3. According to Bohr’s atomic model


4. Which of the following statements is correct ?


5. What is wrong about anode rays ?


6. The average distance of electron from the nucleus in an atom is of the order of


7. When 3d orbitals are completely filled. The new electron will enter in


8. Which of the following statements is wrong ? The probability of finding the electron in px orbital is


9. The maximum number of electrons in s, p and d-subshells are


10. Which of the following is not a characteristic of Planck’s quantum theory of radiations ?


Question 1 of 10