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Rarest chemicals in universe |
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Answer» ➤ The radioactive ELEMENT astatine is so RARE that its INCLUSION in the Periodic Table of the Elements was made at FIRST in theoretical character. ʜᴏᴩᴇ ɪᴛ'ꜱ ʜᴇʟᴩ ᴜʜʜ :) ✧ᴍᴀʀᴋ ᴍy ᴀɴꜱᴡᴇʀ ᴀꜱ ʙʀᴀɪɴʟɪꜱᴛ✧ |
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