Previous Page...   Printer Version Science Constants - Mass Ratio, Electron-α-Particle Symbol: me/mα Value: 1.3709335611(29) × 10-4  Category: - Electron Particle Constants Description:   [ 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 ]