Of the noble gases, only Kr, Xe, and Rn are known to form a few compounds with O and/or F. Complete the following Lewis structures by adding all of the necessary lone pairs and any multiple bonds for each molecule below. Draw your structure with the lowest possible formal charges. A) XeF2
B) XeF4
C) XeO2F2
D) XeO3

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

Which is an example of a highly unstable isotope that is often used in fission reactions?