20 Zlotys Polonium and Radium

正面描述	At centre, a stylised atomic model motif combining an electron orbital diagram with a floral form, rendered against a background of concentric circular lines suggesting radioactive emission waves. To the lower right, the denomination ZŁ 20 appears in the field. Below the central device, the legend RZECZPOSPOLITA POLSKA is inscribed in two lines, with the date 1998 beneath, flanked by a small crowned Polish eagle emblem. The engraver's initials appear at the base of the design.
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正面铭文	ZŁ 20 RZECZPOSPOLITA POLSKA 1998 mw
背面描述	The reverse features a bold compositional design referencing the periodic table of elements, with the chemical symbols Po and Ra prominently displayed in oversized letters occupying the upper and lower fields respectively, each accompanied by their atomic numbers (84 and 88) and mass numbers (209 and 226). Scientific data including electron configuration notations and physical constants fill the field in a stylised script. At right, a high-relief portrait group depicts Marie Curie-Skłodowska seated at a laboratory table, with Pierre Curie standing behind her. The commemorative legend 100-LECIE ODKRYCIA POLONU i RADU is inscribed in three lines across the centre of the field.
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