根據(jù)下列敘述,寫出元素名稱并畫出原子結(jié)構(gòu)示意圖.
(1)A元素原子核外M層電子數(shù)是L層電子數(shù)的一半:
.
(2)B元素原子的最外層電子數(shù)是次外層電子數(shù)的1.5倍:
.
(3)C元素的單質(zhì)在常溫下可與水劇烈反應(yīng),產(chǎn)生的氣體能使帶火星的木條復(fù)燃:
.
(4)D元素原子核外L層電子數(shù)是K層電子數(shù)的4倍,且周期數(shù)等于K層電子數(shù):
.
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【答案】
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【解答】
【點評】
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發(fā)布:2024/6/27 10:35:59組卷:199引用:2難度:0.5
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