My Periodic Shelf (table) of Elements collection, tungsten, gallium, uranium, etc.

[@alexppg8691]

Cool Cuz! You are literally the smartest dude I know.

[@John_Silence]

So cool, thanks for sharing!

[@benjaminmargulies1853]

sodium explodes in water because the reaction produces enough heat to melt the sodium and heat the molten sodium to 115 degrees C (its autoignition point) which in turn produces even more heat which ignites the hydrogen produced in the reaction with water (submerge the sodium completely, no fire)

[@ewanb8067]

I saw those radium watch hands, it said they were in a radiation proof material.

[@colbyjackgamer8377]

This is awesome! I want to start a collection soon, what would you say the best way to start is?

[@JoyeMusiccom]

Ebay is a good way sometimes.

[@RockyandObsidianVR]

Amazon too

[@martymoo]

Luciteria or Magerial websites