重金属
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(重(zhòng )金(jīn )属(shǔ ),重(zhòng )金(jīn )属(shǔ ))
比(bǐ )重(zhòng )大(dà )于(yú )5的(de )金(jīn )属(shǔ ),大(dà )多(duō )数(shù )金(jīn )属(shǔ )都(dōu )是(shì )重(zhòng )金(jīn )属(shǔ ),如(rú )锇(é )、铂(bó )、汞(gǒng )、金(jīn )、银(yín )、铜(tóng )、铁(tiě )。重(zhòng )金(jīn )属(shǔ )的(de )化(huà )学(xué )性(xìng )质(zhì )一(yī )般(bān )比(bǐ )较(jiào )稳(wěn )定(dìng )。
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