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Table 10
Initial values for the number densities of the hydrogen and helium elemental species and the deuteroids.
| H− | 1.0(− 9) | D | fDnH |
|
1.0(− 11) | D+ | fDnH+ |
| He | 0.8(− 1) nH | D− | fDnH− |
| He+ | 0.0(+ 0) | HD | fDnH2 |
| He + + | 0.0(+ 0) | HD+ | fDnH2+ |
| D2 |  nH2 |
Notes. See the text for details.
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