Physical Constants

Can you name the physical constants to three (or four) significant digits?

Forced Order Answers have to be entered in order
Speed of light (c)x 108 m/s
Avogadro's number (NA)x 1023 mol-1
Electron mass (me)x 10-31 kg
Proton mass (mp)x 10-27 kg
Elementary charge (e)x 10-19 C
Planck constant (h)x 10-34 m3/kg·s2
Molar gas constant (R)J/mol·K
Electric constant (ϵ0)x 10-12 F/m
Gravitational constant (G)x 10-11 m3/kg·s2
Bohr radius (a0)x 10-11 m
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Last Updated: Feb 16, 2017

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