Welcome to the 1520 Perfect Dictionary
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| Alkaline earth metals | |
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| ALKALINE EARTH METALS Definition: The bivalent metals of group II of the periodic table: beryllium, magnesium, calcium, strontium, barium and radium. Their hydroxides are weaker bases than those of the alkali metals. ____________________________________ See perfect particularity (1). See perfect valency (2). See perfect form (1). | |
1520 Products |
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1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way. |
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 1520 Sex Game |
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 1520 Marriage Game |