鉛的簡介

鉛(qian)(qian)(qian)(qian)(qian)是(shi)(shi)一(yi)種金(jin)(jin)屬(shu)(shu)化(hua)學元素，其化(hua)學符號是(shi)(shi)Pb（拉(la)丁文Plumbum;英文lead），原子序數為(wei)82,是(shi)(shi)原子量更(geng)大的(de)(de)非(fei)放射性元素。　　鉛(qian)(qian)(qian)(qian)(qian)是(shi)(shi)柔軟和延(yan)展性強的(de)(de)弱金(jin)(jin)屬(shu)(shu)，有毒(du)，也是(shi)(shi)重金(jin)(jin)屬(shu)(shu)。鉛(qian)(qian)(qian)(qian)(qian)原本的(de)(de)顏色(se)為(wei)青白色(se)，在空氣中表(biao)面(mian)很快被一(yi)層暗(an)灰色(se)的(de)(de)氧化(hua)物(wu)覆蓋(gai)。可用(yong)于(yu)建筑、鉛(qian)(qian)(qian)(qian)(qian)酸(suan)蓄電(dian)池(chi)、彈(dan)頭、炮(pao)彈(dan)、焊接物(wu)料、釣魚用(yong)具(ju)、漁(yu)業用(yong)具(ju)、防(fang)輻射物(wu)料、獎杯和部份合(he)金(jin)(jin)，例如電(dian)子焊接用(yong)的(de)(de)鉛(qian)(qian)(qian)(qian)(qian)錫合(he)金(jin)(jin)。鉛(qian)(qian)(qian)(qian)(qian)是(shi)(shi)一(yi)種金(jin)(jin)屬(shu)(shu)元素，可用(yong)作(zuo)耐(nai)硫酸(suan)腐蝕、防(fang)電(dian)離輻射、蓄電(dian)池(chi)等的(de)(de)材料。其合(he)金(jin)(jin)可作(zuo)鉛(qian)(qian)(qian)(qian)(qian)字(zi)、軸承、電(dian)纜(lan)包皮等之用(yong)，還可做體育運動(dong)器材鉛(qian)(qian)(qian)(qian)(qian)球。