MCQOPTIONS
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| 1. |
In the following atoms and moleculates for the transition from n= 2 to n = 1, the spectral line of minimum wavelength will be produced by |
| A. | Hydrogen atom |
| B. | Deuterium atom |
| C. | Uni-ionized helium |
| D. | di-ionized lithium |
| Answer» E. | |