1. Quelle est la composition principale de l'univers selon la théorie cosmologique actuelle?
2. Quelle est la durée approximative depuis la theoretical origine de l'univers selon la théorie du Big Bang?
3. Quel est le rôle principal de la structure de l’atome dans la matière?
Univers — composition ?
Galaxies, vide, énergie, matière
Univers — composition?
Matière, énergie, espace, temps, vide.
Atome — structure ?
Noyau (protons, neutrons), électrons en orbite
Galaxie — définition?
Assemblage massif d’étoiles, gaz, poussières.
Particules subatomiques — principales ?
Protons, neutrons, électrons
Big Bang — principe?
Origine de l’univers, il y a 14 milliards d’années.
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