Use the periodic table to answer the question. Which one of the following elements has the same number of electrons in the outer shell and similar chemical characterisitcs as the atom shown? a. I
b. K
c. S
d. Bi

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife