Periodic Table by غادة حمدي https://padlet.com/ghooda12/Bookmarks Chemistry- Grade11 General. en-us 2020-05-26 16:10:15 UTC 2026-01-12 19:52:14 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/598601628/de88af25ecd5b5bc628bdfd81c9b7b3e/H.png Ms Ghada. ghooda12 https://padlet.com/ghooda12/Bookmarks/wish/713620532 2020-09-02 01:05:22 UTC https://padlet.com/ghooda12/Bookmarks/wish/713620532 Reem naseer https://padlet.com/ghooda12/Bookmarks/wish/714223386 1- R 
2- R
3- T 
4- T 
5- R 
6- T 
7- T 
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Atomic number = 11
mass number = 22.98976]]> 2020-09-02 07:25:38 UTC https://padlet.com/ghooda12/Bookmarks/wish/714223386