2. Webographie

-https://www.google.dz/books/edition/C_est_quoi_la_chimie/emMEDgAAQBAJ?hl=fr&gbpv=1&dq=%C2%

AB+C%27est+quoi+la+chimie%3F+%C2%BB,1er+%C3%A9dition,+De+Boeck+Superieur,+(2014).

&pg=PA23&printsec=frontcover

-https://fr.khanacademy.org/science/physique-a-l-ecole/x6e8a541a302cdab5:physique-a-l-ecole-6e-anneesecondaire-

2h/x6e8a541a302cdab5:physique-a-l-ecole-6e-2h-mecanique-quantique-l-atome-et-le-photon/a

/photoelectric-effect

-https://www.google.dz/books/edition/Chimie_g%C3%A9n%C3%A9rale/OiVMCQEZpNMC?

hl=fr&gbpv=1&dq=cours+Effet+photo%C3%A9lectrique&pg=PA114&printsec=frontcover

-https://www.google.dz/books/edition/Physique_atomique_Syst%C3%A8mes_hydrog%C3%A9no%C3%AF

/LWHvEAAAQBAJ?hl=fr&gbpv=1&dq=energie+pour+les+hydrogenoides&printsec=frontcover

-https://dpt-st.univ-boumerdes.dz/images/nouveau_etudiants/coursS1/chimie1/Chapitre%20III_Structure%

20_lectronique.pdf

-https://www.google.dz/books/edition/La_classification_p%C3%A9riodique_des_%C3%A9l%C3%A9m

/grRsT8H14DMC?hl=fr&gbpv=1&dq=tableau+periodique&pg=PA55&printsec=frontcover

-https://www.google.dz/books/edition/Principes_de_chimie/ne2ZDgAAQBAJ?

hl=fr&gbpv=1&dq=evolution+des+propri%C3%

A9tes+du+tableau+periodique&pg=PA644&printsec=frontcover