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When you remove your hand
It's difficult to fathom just how old these fossils truly are
This is why Gallium is not allowed in carry-on bags on a plane
who in many small places do many small things
This atomic glass has come to be known as Trinitite
Sodium Element Cube Mini Museum When you remove your handSodium's atomic number is 11 and its symbol is Na. Sodium is a bright silvery alkali metal that is about as soft as cold butter. Sodium makes up 50% of table salt along with chlorine. Sodium is essential for all animals as well as some plants. It is consumed by animals in sodium compounds. Pure sodium metal is highly reactive. In the presence of water, sodium will instantly catch on fire and explode. When pure sodium is exposed to the oxygen in the
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