

MCQOPTIONS
Saved Bookmarks
1. |
If the energy of the electron in the 2nd orbit of hydrogen is -3.4 eV, then how much is the energy (in eV) in the 3rd orbit? |
A. | - 1.511 |
B. | 2.22 |
C. | - 5.1 |
D. | -13.6 |
Answer» B. 2.22 | |