-
Consider 3rd orbit of He+ (Helium), using non-relativistic approach, the speed of electron in this orbit will be [given K = 9 × 109 constant, Z = 2 and h (Plank's Constant) = 6.6 × 10–34 J s ]
-
- 1.46 × 106 m/s
- 0.73 × 106 m/s
- 3.0 × 108 m/s
- 2.92 × 106 m/s
Correct Option: A
Speed of electron in nth orbit
| Vn = | nh |
| V = (2.19 × 106 m/s) | n |
| V = (2.19 × 106) | (Z = 2 & n = 3) | 3 |
V = 1.46 × 106 m/s
