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Curated by: Zepherus (59 videos)
To celebrate/commemorate my 50th video, I review my ever-expanding periodic table collection in it's entirety, which I haven't done since my very first video! Playlist for the ECAs: https://www.youtube.com/playlist?list=PL9aLztLT0aWSEsQRwu9kowTWCO_KhUQEO