Name this group of silvery, soft metals that includes radium, strontium, barium, calcium, magnesium, and beryllium; group IIa on the periodic table.
Many textbooks give this group's elements' electron affinities as extremely endothermic, but recent research revealed that their ions are stable and that the correct electron affinities for this group are quite low. These elements are soluble in ammonia, and act as reducing agents. Their affinity for water is so strong that many of their salts crystallize into hydrates, such as Epsom salt and gypsum, their sulfates. Because of their high electropositivity, ths group's elements generally form plus-two ions. Name this group of silvery, soft metals that includes radium, strontium, barium, calcium, magnesium, and beryllium; group IIa on the periodic table.
Many textbooks give this group's elements' electron affinities as extremely endothermic, but recent research revealed that their ions are stable and that the correct electron affinities for this group are quite low.
{alkaline earth} metals [or {alkaline earth} elements; do not accept or prompt on answers mentioning