Previous Page...   Printer Version Science Constants - Proton Charge to Mass Quotient Symbol: e/mp Value: 9.57883408(38) × 107 C kg-1 Category: - Proton 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 ]