²é¿´: 263  |  »Ø¸´: 4
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

727780934

Í­³æ (СÓÐÃûÆø)

[½»Á÷] ÇóÖúÈý¼ÛÅðµÄ¹²¼Û°ë¾¶

ÇóÖúÈý¼ÛÅðµÄ¹²¼Û°ë¾¶ÊǶàÉÙ£¿

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

vjyong

ľ³æ (СÓÐÃûÆø)

¡ï ¡ï
727780934(½ð±Ò+1,VIP+0):лл£¬Ôõô»áÕâÃ´Ð¡ÄØ£¿ÄúÄܰÑԭʼÎÄÕ´«¸øÎÒ¿´Ò»ÏÂÂð£¿Ð»Ð»£¡ 10-6 08:56
727780934(½ð±Ò+1,VIP+0):лл 10-6 23:18
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
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 5 ¸ö»Ø´ð

lwb1987521

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï
727780934(½ð±Ò+1,VIP+0):ллÁË£¡ 10-6 08:58
727780934(½ð±Ò+1,VIP+0):Âé·³Çë½Ìһϣ¬Èç¹ûB3+ÓëO·¢ÉúËÄÅä룬ËüµÄ°ë¾¶Ôõô¼ÆËãÄØ£¿Ð»Ð» 10-6 09:01
ÅðÔªËØÔ­×Ó°ë¾¶ 0.082nm
Ò»°ã£¬Ë«¼ü°ë¾¶Êǵ¥¼ü°ë¾¶µÄ86%£¬Èý¼ü°ë¾¶Êǵ¥¼ü°ë¾¶µÄ78%¡£
5Â¥2009-10-05 16:12:34
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Çó²ÄÁϵ÷¼Á +8 ¸ô±Ú³ÂÏÈÉú 2026-03-12 8/400 2026-03-18 22:19 by li123456789.
[¿¼ÑÐ] 344Çóµ÷¼Á +6 knight344 2026-03-16 7/350 2026-03-18 20:13 by walc
[¿¼ÑÐ] 08¹¤¿Æ 320×Ü·Ö Çóµ÷¼Á +5 À滨çóÍí·ç 2026-03-17 5/250 2026-03-18 14:49 by haxia
[¿¼ÑÐ] ²ÄÁÏר˶306Ó¢Ò»Êý¶þ +10 z1z2z3879 2026-03-16 13/650 2026-03-18 14:20 by 007_lilei
[¿¼ÑÐ] 303Çóµ÷¼Á +4 î£08 2026-03-17 6/300 2026-03-18 11:01 by Iveryant
[¿¼ÑÐ] 278Çóµ÷¼Á +5 ÑÌ»ðÏÈÓÚ´º 2026-03-17 5/250 2026-03-18 08:43 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 334Çóµ÷¼Á +3 Ö¾´æ¸ßÔ¶ÒâÔÚ»úÐ 2026-03-16 3/150 2026-03-18 08:34 by lm4875102
[»ù½ðÉêÇë] ±»ÎÒÑÔÖУºÐÂÄ£°å²»Ç¿µ÷¸ñʽÁË£¬¼Ùר¼Ò¿ªÊ¼¹Ü¸ñʽÁË +4 beefly 2026-03-14 4/200 2026-03-17 22:04 by »ÆÄñÓÚ·ÉChao
[¿¼ÑÐ] 332Çóµ÷¼Á +6 Zz°æ 2026-03-13 6/300 2026-03-17 17:03 by ruiyingmiao
[¿¼ÑÐ] Ò»Ö¾Ô¸ËÕÖÝ´óѧ²ÄÁϹ¤³Ì£¨085601£©×¨Ë¶ÓпÆÑо­ÀúÈýÏî¹ú½±Á½¸öʵÓÃÐÍרÀûÒ»ÏîÊ¡¼¶Á¢Ïî +6 ´ó»ðɽС»ðɽ 2026-03-16 8/400 2026-03-17 15:05 by ÎÞи¿É»÷111
[¿¼ÑÐ] 283Çóµ÷¼Á +3 Ìý·ç¾ÍÊÇÓꣻ 2026-03-16 3/150 2026-03-17 07:41 by ÈÈÇéɳĮ
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤ Çóµ÷¼Á +13 enenenhui 2026-03-13 14/700 2026-03-16 15:19 by ÁËÁËÁËÁË¡£¡£
[¿¼ÑÐ] 0856ר˶279Çóµ÷¼Á +5 ¼ÓÓͼÓÓÍ£¡? 2026-03-15 5/250 2026-03-15 11:58 by 2020015
[¿¼ÑÐ] 294Çóµ÷¼Á +3 Zys010410@ 2026-03-13 4/200 2026-03-15 10:59 by zhq0425
[¿¼ÑÐ] Öпƴó²ÄÁÏÓ뻯¹¤319Çóµ÷¼Á +3 ÃÏöβÄÁÏ 2026-03-14 3/150 2026-03-14 20:10 by ms629
[¿¼ÑÐ] 329Çóµ÷¼Á +3 miaodesi 2026-03-12 4/200 2026-03-13 20:53 by 18595523086
[¿¼ÑÐ] 311Çóµ÷¼Á +3 ¶¬Ê®Èý 2026-03-13 3/150 2026-03-13 20:41 by JourneyLucky
[¿¼ÑÐ] 290Çóµ÷¼Á +7 ADT 2026-03-12 7/350 2026-03-13 15:17 by JourneyLucky
[¿¼ÑÐ] Çóµ÷¼Á +3 ³ÌÓ꺼 2026-03-12 3/150 2026-03-13 15:06 by JourneyLucky
[¿¼ÑÐ] 328»¯¹¤×¨Ë¶Çóµ÷¼Á +4 ¡££¬¡££¬¡££¬¡£i 2026-03-12 4/200 2026-03-13 14:44 by JourneyLucky
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û