How many half-lives will pass by the time 1.56% of I-131 is present? B. Approximately how many days does that equal? *

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

How do you know when a chemical reaction has occurred

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms