… CONTRE PLASMA

L’état solide, le moins énergétique des états de la matière, consiste en des atomes (en jaune) reliés par des liaisons en grand nombre (1). Un afflux d’énergie brise certaines de ces liaisons et forme un liquide (2). Encore un peu plus, et les atomes, libérés les uns des autres, forment un gaz (3). Un supplément d’énergie commence à dissocier les atomes eux-mêmes : les particules qui les composent se libèrent les unes des autres. La matière a atteint l’état de plasma, où cohabitent noyaux d’atomes et électrons libres (4).…

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Science & Vie Junior Hors Série (Digital) - 1 Issue, HS No. 139

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