As part of a chemical compound, which element consists of atoms that most strongly attract electrons of other atoms?

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

Which other elements contain the same number of outer electrons as sodium

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules