Lithium 7 decays losing one alpha particle what is left?
7H
1
loses 2 protons, 2 neutrons
so atomic number goes from 3 to 1, and atomic mass goes from 7 to 3. Tritium is left. 1H3
7H
1
so atomic number goes from 3 to 1, and atomic mass goes from 7 to 3. Tritium is left. 1H3