K-drama recommendations? (On Netflix) I have watched True Beauty, 2015 school, Revenge Note, Hi Bye Mama, It’s Okay To Not Be Okay, ( not a k-drama but) Meter Garden

How many neutrons does a atom of cobalt have?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this