1st Group

    Hydrogen

    • Default: H+

    • Molecules:

      • Neutral atoms: 1 bond is accepted

      • Charged atoms: Not allowed in molecules.

      • Radical: Not allowed in molecules.

    • Ions: H+, H-

    • Radical:

      • H · is accepted

      • H without radical and charge or bond is not accepted.

    Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Caesium (Cs), Francium (Fr)

    • Default: Li, Na, K, Rb, Cs, Fr respectively.

    • Molecules:

      • Neutral atoms: 1 bond is accepted.

      • Charged atoms: Not allowed in molecules.

      • Radical: Not allowed in molecules.

    • Ions: Li+, Na+, K+, Rb+, Cs+, Fr+ are accepted.

    • Radical: Me · is accepted