What is the valence electron configuration of the halogens? Why do the boiling points and melting points of the halogens increase steadily from F2 to I2?
Answer to relevant QuestionsWhat evidence supports putting hydrogen in Group 1A of the periodic table? In some periodic tables hydrogen is listed separately from all of the groups. In what ways is hydrogen unlike a Group 1A element? Photogray lenses contain small embedded crystals of solid silver chloride. Silver chloride is light-sensitive because of the reaction AgCl(s) → Ag(s) + Cl(s) Small particles of metallic silver cause the lenses to darken. ...What are the two most abundant elements by mass in the earth’s crust, oceans, and atmosphere? Does this make sense? Why? What are the four most abundant elements by mass in the human body? Does this make sense? Why? Write balanced equations describing the reaction of lithium metal with each of the following: O2, S8, Cl2, P4, H2, H2O, and HCl. The unit cell for a pure xenon fluoride compound is shown below. What is the formula of the compound?
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