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  |  |     | # | Species | Formula |    | 6 | Lithium, cation | Li |  |    | 7 | Lithium, 2P(u) 2s(0) 2p(1) | Li |  |    | 8 | Lithium, atom | Li |  |    | 9 | Lithium hydride (Geo) | HLi |  |    | 10 | Lithium hydride | HLi |  |    | 11 | Helium lithium cation (Geo) | HeLi |  |    | 12 | Lithium, dimer (Geo) | Li2 |  |    | 13 | Lithium dimer | Li2 |  |    | 14 | Beryllium, atom | Be |  |    | 15 | Beryllium hydride, cation (Geo) | HBe |  |    | 16 | Beryllium hydride, cation | HBe |  |    | 17 | Beryllium hydride (Geo) | HBe |  |    | 18 | Beryllium hydride | HBe |  |    | 19 | Beryllium dihydride | H2Be |  |    | 20 | LiBeH (Geo) | HLiBe |  |    | 21 | Lithium beryllium hydride | HLiBe |  |    | 22 | Beryllium, dimer | Be2 |  |    | 23 | Boron, cation | B |  |    | 24 | Boron, atom | B |  |    | 25 | BH (Geo) | HB |  |    | 26 | Borane(1) | HB |  | 
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