Overview. Beryllium is the lightest member of the alkaline earth metals family. These metals make up Group 2 (IIA) of the periodic table. They include beryllium, magnesium, calcium, strontium, barium, and radium.Elements in the same column of the periodic table have similar chemical properties.eryllium is the lightest member of the alkaline earth metals family. These metals make up Group 2 (IIA) of the periodic table.
Definition 1: EER, energy efficiency ratio: Is the measure of air conditioner efficiency at maximum air conditioning load. It is measured by ratio of Btu/hour of cooling or heating load, to watts of electrical power input. The unit is in Btu hr-1 W-1. Definition 2: SEER, seasonal energy efficiency ratio: The measurement units of SEER is exactly the same as EER, but the difference lies in the data used for the measurement. Values for SEER, is determined through averaging readings of different air conditions, to represent air conditioner efficiency throughout the season.
Relevance. Rating Newest Oldest. Best Answer: SEER is an acronym for seasonal energy efficiency ratio as opposed to EER which is just energy efficiency ratio EER is the number of Btu's produced by an air conditioner for each watt of energy consumed.ou have to weigh the cost vs. SEER as the higher the seer the greater the cost. I would say the best value for the dollar is in the range of 15-16 SEER right now. For the size house and age and energy efficiency of the home, you are looking at a unit somewhere between 3 and 3.5 tons.