Previous Page...   Printer Version Science Constants - Madelung's Constant Symbol: M2 Value: -1.6155426267  Category: - General Mathematical Constants Description: The value quoted is that for a two-dimensional sodium chloride (NaCl) crystal.   [ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O N O M Y ] [ Download ] [ Shop ] [ Contact ] [ About ]