Previous Page...   Printer Version Science Constants - Curie Symbol: Ci Value: 3.7 × 1010 Bq Category: - Description: One Curie equals the radioactivity of a source with equal radioactivity as 1 g of 226Ra86 in secular equilibrium with 222Rn86. Named after Pierre and Marie Curie.   [ 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 ]