Which element is likely to have the highest thermal conductivity?
antimony
carbon
sodium
gallium

Element before carbon on the periodic table

Helium decays to form lithium. which equation correctly describes this decay?

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !