When electron jump into orbit 1 then series obtained is___________________?

Related Mcqs:

1. When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is______________?

   A. 0.33 nm B. 0.34 nm C. 0.35 nm D. 0.36 nm...

2. 2nd orbit is ___________ away from nucleus of H-atom as compared to 1st orbit is ?

   A. 2-times B. 3-times C. 4-times D. 6 times...

3. When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in______________________?

   A. orbitals of f-subshell B. orbitals of d-subshell C. orbitals of p-subshell D. both A & B...

4. The maximum number of electron in a sub shell with ? = 3fs______________?

   A. 6 B. 10 C. 14 D. 18...

5. The value of e/m ratio of electron is________________?

   A. 6.02 x 1023 C/kg B. 1.7588 x 1020 C/kg C. 9.1095 x 10-31 C/kg D. 1.7588 x 1011 C/kg...

6. Charge of electron was measured by__________________?

   A. J.J Thomson B. Millikan C. Rutherford D. Perrin...

7. Wavelength of electron was verified by_________________?

   A. Moseley B. Davisson and Germer C. Einstein D. Roentgen...

8. Quantum number which tells the energy of electron is________________?

   A. n B. 1 C. m D. s...

9. When 6d orbital is complete the entering electron goes into_________________?

   A. 7f B. 7s C. 7p D. 7d...

10. An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

    A. Group IA B. Group IB C. Group VIIA D. Group VIII...