Welcome to the 1520 Perfect Dictionary
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| Atomic number | |
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| ATOMIC NUMBER Definition: (chemistry) The number of protons in the nucleus (= centre) of an atom, which is characteristic of a chemical element. Elements are placed in the periodic table according to their atomic numbers. __________________________________ NOT APPLICABLE. See perfect number (4). See perfect proton. _____ See perfect nucleus (1). _____ See perfect tabulation. See perfect placement (3). See perfect measurement (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 |
 1520 Puzzles |
 1520 Marriage Game |