Radon-222 decays with a half-life of 3.82 days. If an initial sample of the element contains 1000 atoms, how long will it take to decay down to 125 atoms?

Answer from each drop-down menu. e characteristics of a borane molecule (bh). the lewis structure and table of electronegativities are given olecular shape is and the molecule is reset next erved. search e a

Describe the interaction that occurs between two objects with the same electrical charge.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false