Saved Bookmarks
| 1. |
An element X has the following isotopic composition.""^(200)X=90%, ""^(199)X=8.0%, ""^(202)X=2.0%Its average atomic mass is |
|
Answer» 199amu `=0.9xx200+0.08xx199+0.02xx202` `=180+15.92+404=199.96` `=200` amu |
|