planck : 6.62607004 × 10-34 m^2 kg / s
Symbol | Quantity | Value |
---|---|---|
D | Debye | 2.53 × 10−18 esu cm |
G | Gravitational constant | 6.67 × 10 −8 dyne cm2 g−1 |
NA | Avogadro’s number | 6.022 × 1023 mole−1 |
a0 | Bohr radius | 5.29 × 10−9 cm |
c | Velocity of light | 2.99792 × 10 10 cm s−1 |
e | Charge of the electron | 4.80325 × 10 −10 electrostatic units (esu) |
eV | One electron volt | 1.602 × 10−12 erg |
h | Planck’s constant | 6.626 × 10−27 erg s |
k | Boltzmann’s constant | 1.380 × 10−16 erg degree−1 |
me | Mass of the electron | 9.11 × 10 −28 g |
mp | Mass of the proton | 1.672 × 10−24 g |
σ | Stefan–Boltzmann constant | 1.80 × 10 −5 erg cm−2 degree−4 s−1 |
Y, Yota, e24 = 1000^8
y, yocto e-24