In chem.

1. which particle is emitted when an atom of 23090th changes to 22688ra?

a.. alpha particle

b. beta particle

c. gamma particle

d. positron

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?