Atomic #, Mass #, Protons, Neutrons, Electrons

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
IsotopeAtomic numberMass numberProtonsElectronsNeutrons
beryllium-9
- 188
aluminum - 14
- 2534
- 2935
arsenic - 41
- 8851
silver - 104
- 5683
- 20282