Why is magnesium useful as a structural element in frames of everything from cell phones to airplanes?

As you move from right to left on the periodic table the atomic radius fill in the blank

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane