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vjyong
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727780934(½ð±Ò+1,VIP+0):лл£¬Ôõô»áÕâÃ´Ð¡ÄØ£¿ÄúÄܰÑÔʼÎÄÕ´«¸øÎÒ¿´Ò»ÏÂÂð£¿Ð»Ð»£¡ 10-6 08:56
727780934(½ð±Ò+1,VIP+0):лл 10-6 23:18
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the ionic radius of B3+ (0.027 nm) is just one half of the radius of Al3+ (0.054 nm) For the SAME coordination number B3+ always has a SMALLER ionic radius than Be2+, however the coordination environment does matter: Be2+ : (CN=3) 16 pm, (CN=4) 27 pm, (CN=6) 45 pm B3+ : (CN=3) 10 pm, (CN=4) 12 pm, (CN=6) 27 pm [ Last edited by vjyong on 2009-10-5 at 15:26 ] |
3Â¥2009-10-05 15:20:54
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727780934(½ð±Ò+1,VIP+0):ллÁË£¡ 10-6 08:58
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