How many electrons are shared in the covalent bonds in a methane molecule? Why?
April 26, 2010
Tags: Bonds, covalent, electrons, many, methane, molecule, shared
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æ¯ä¸ªæ°¢åŽŸå电åè‚¡1股和碳4电å。
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甲烷 – 四电å对æ£åœ¨åˆ†äº«çš„碳原å,氢从æ¯ä¸€ä¸ªå¤–壳。
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我举两个解释:1。计算公å¼ä¸ºç”²çƒ·CH4的。总共有8ä¸ªä»·ç”µå – 1æ¯ä¸ªæ°¢åŽŸå和碳原å为4。有4个å•债券,甲烷分å䏿²¡æœ‰å¤ç”µå对。éšç€8价电åå’Œ4个å•债券,我们得到8 / 4 = 2æ¯ä»½å€ºåˆ¸ç”µå。2。甲烷分å包å«4个å•ï¼Œæˆ–æ ‡å‡†å·®ï¼Œå€ºåˆ¸ã€‚æ¯ä¸ªÏƒé”®ä¹‹é—´å½¢æˆäº†ä¸€ä¸ªæ°¢åŽŸå,其ä¸åŒ…å«ä¸€ä¸ªç”µå1的轨é“,和四个混åˆSP3ä¸çš„碳原å轨é“的一个,æ¯ä¸ªéƒ½åŒ…å«ä¸€ä¸ªç”µå。这使我们æ¯2键电å。
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