After an 80.00 g sample of hydrated beryllium nitrate was heated, 51.92 g of anhydrous solid was measured and recorded. Determine the empirical formula for this hydrate?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Which of these conditions most likely produces an unstable isotope?

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.