From: Thermal evolution of icy planetesimals in the solar nebula
Element | Number of atoms | Molecule | Number of molecules | Mass of molecules |
---|---|---|---|---|
H | 2.79 ’ 1010 | H2 | 1.39 ’ 1010 | 2.80’ 1010 |
He | 2.72 ’ 109 | He | 2.72 ’ 109 | 1.09’ 1010 |
N | 3.13 ’ 107 | N2 | 1.57 ’ 107 | 4.38 ’ 108 |
Ne | 3.44 ’ 106 | Ne | 3.44 ’ 106 | 6.94’ 107 |
C | 1.01 ’ 107 | CH2a | 6.82 ’ 106 | 9.55 ’ 107 |
O | 2.38 ’ 107 | |||
O (gas) | 1.98 ’ 107 | CO | 3.29 ’ 106 | 9.23 ’ 107 |
H2O | 1.65 ’ 107 | 2.97’ 108 | ||
O (rocks) | 4.04 ’ 106 | |||
Mg | 1.07 ’ 106 | MgO | 1.07 ’ 106 | 4.33 ’ 107 |
Si | 1.00 ’ 106 | SiO2 | 1.00 ’ 106 | 6.01 ’ 107 |
Fe | 9.00 ’ 105 | FeO | 9.00’ 105 | 6.46 ’ 107 |
Al | 8.49 ’ 104 | Al2O3 | 4.25 ’ 104 | 4.33 ’ 106 |