In the Lewis structure for ICl2–, how many lone pairs of electrons are around the central iodine atom? a. 0
b. 1
c. 2
d. 3
e. 4

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

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.

What is an example of a physical property?