This chapter deals with a brief presentation of the nucleosynthesis processes which are responsible for the formation of the observed chemical elements : the primordial nucleosynthesis occurring just after the Big Bang, responsible for the formation of D, 3He,4 He and at least in part 7Li; the bombardment of the interstellar medium by galactic cosmic rays responsible for the formation of the bulk of the Li, Be, B elements; and the stellar nucleosynthesis responsible for the formation of the heavier nuclear species.

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	4
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Average
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average