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发帖数: 1347 | 1 If you want a chemical life form, then
1. H is the most popular element here.
2. C has 4 chemical-keys, so C is the most flexible element we have;
next candidate is Si, but Si is heavier so it is hard to be generated
by stars.
3. O is active and can form stable relationships with C and H, also
it is easier to be generated by stars, next one on the row is S,
but it is heavier too.
So it is safe to say the most popular chemical life form must be C-based. |
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