Why are the metallic bonds in an alkali metal relatively weak?

alkali metals have low atomic mass.

alkali metals have a low ionization energy.

alkali metals contribute only one valence electron.

alkali metals’ outer energy levels are already full.

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide