List the symbol and the bonding capacity of the 4 most common elements found in organic compounds.

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.