Today Is...Periodic Table Invented

Today is the birthday of the creation of the Periodic Table and the last time i did a pun filled post about chemistry i didn't get a reaction so i have a few scientific type friends who i assumed would be in their Element so i emailed them for some ideas for a blog post to mark the event.
One said that pun filled posts about Chemistry would be Boron because all the best jokes Aregon and the science community has Sulfured enough so i should write about something else instead.
Another said that i should take my jokes and Barium while another said my posts were becoming negative and i should keep an Ion them which annoyed me so next time i saw her i threw some Sodium Chloride at her and now i'm in trouble with the law as apparently that's A Salt.
No sense of humour the Scientific Community.