Rubidium and caesium borides haven’t even been characterised. Varied phases are known, reminiscent of LiB10, NaB6, NaB15, and KB6. Lithium and sodium react with carbon to type acetylides, Li2C2 and Na2C2, which may also be obtained by response of the metallic with acetylene. Okay, Rb, or Cs). Upon heating of …
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