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结构化学提要1:原子结构

2023-01-06 10:29 作者:Ymprover  | 我要投稿

Up期末考完啦!整理整理本学期所学内容~

注:本文偏定性分析,定量部分较少

1. 四个量子数:n%2C%5C%3Bl%2C%5C%20m_l%2Cm_s

2. 能级分裂与能级交错:

E_%7B%5Crm%20ns%7D%3CE_%7B%5Crm%20np%7D%3CE_%7B%5Crm%20nd%7D%3CE_%7B%5Crm%20nf%7D%3CE_%7B%5Crm%20ng%7D

E_%7B%5Crm%20ns%7D%3CE_%7B%5Crm%20(n-3)g%7D%3CE_%7B%5Crm%20(n-2)f%7D%3CE_%7B%5Crm%20(n-1)d%7D%3CE_%7B%5Crm%20np%7D

(能级交错原因:Z%5E*%3DZ-%5Csigma%5Csigma可由Slater规则估算)

3. 核外电子排布原则:能量最低原理、泡利不相容原理、洪特规则(特例:能量相同的轨道在全满、半满、全空的状态下更稳定)

4. 元素周期表与元素周期律

一个周期包含一个能级组(E_%7B%5Crm%20ns%7D%3CE_%7B%5Crm%20(n-3)g%7D%3CE_%7B%5Crm%20(n-2)f%7D%3CE_%7B%5Crm%20(n-1)d%7D%3CE_%7B%5Crm%20np%7D

① 原子半径

同族,n越大 r 越大;

主族元素:同周期,Z越大 r 越小,

(除了第一周期和0族元素,元素周期表越往右上,r越小;%5Crm%20H最小,%5Crm%20F次之);

过渡元素:同周期变化小(%20ⅦB族的偏大);镧系收缩。

② 离子半径:Pauling公式 r%3D%5Cfrac%7Bc_n%7D%7BZ%5E*%7Dc_n与 n 正相关,由实验测定)

③ 电离能:同元素I_1%3CI_2%3CI_3%3C...

主族元素I_1:元素周期表越往右上越大;ⅡA与ⅤA反常高于右边第一个临族

电离能可用于判断元素常见氧化数。

④ 金属性、电负性:元素周期表越往右上,非金属性、电负性越强

电负性三哥:%5Crm%20F%3EO%3EN

⑤ 背表(按族排序,因为周期的好背不再陈述;电子构型那里没标特例)

ⅠA %5Crm%20ns%5E1%5Crm%20H%2C%5C%3BLi%2C%5C%3BNa%2C%5C%3BK%2C%5C%3BRb%2C%5C%3BCs

ⅡA %5Crm%20ns%5E2%5Crm%20Be%2C%5C%3BMg%2C%5C%3BCa%2C%5C%3BSr%2C%5C%3BBa

ⅢA %5Crm%20ns%5E2np%5E1%5Crm%20B%2C%5C%3BAl%2C%5C%3BGa%2C%5C%3BIn%2C%5C%3BTl

ⅣA %5Crm%20ns%5E2np%5E2 :%5Crm%20C%2C%5C%3BSi%2C%5C%3BGe%2C%5C%3BSn%2C%5C%3BPb

ⅤA %5Crm%20ns%5E2np%5E3 :%5Crm%20N%2C%5C%3BP%2C%5C%3BAs%2C%5C%3BSb%2C%5C%3BBi

ⅥA %5Crm%20ns%5E2np%5E4 :%5Crm%20O%2C%5C%3BS%2C%5C%3BSe%2C%5C%3BTe%2C%5C%3BPo

ⅦA  %5Crm%20ns%5E2np%5E5 :%5Crm%20F%2C%5C%3BCl%2C%5C%3BBr%2C%5C%3BI%2C%5C%3BAt

ⅢB %5Crm%20(n-1)d%5E1ns%5E2%5Crm%20Sc%2C%5C%3BY(没背镧系锕系)

ⅣB %5Crm%20(n-1)d%5E2ns%5E2%5Crm%20Tl%2C%5C%3BZr%2C%5C%3BHf

ⅤB %5Crm%20(n-1)d%5E3ns%5E2%5Crm%20V%2C%5C%3BNb%2C%5C%3BTa

ⅥB %5Crm%20(n-1)d%5E5ns%5E1%5Crm%20Cr%2C%5C%3BMo%2C%5C%3BW

ⅦB %5Crm%20(n-1)d%5E5ns%5E2%5Crm%20Mn%2C%5C%3BTc%2C%5C%3BRe

Ⅷ   %5Crm%20(n-1)d%5E%7B6%5Csim8%7Dns%5E2%5Crm%20Fe%2C~Co%2C~Ni%3B~Ru%2C~Rh%2C~Pd%3B~Os%2C~Ir%2C~Pt

ⅠB %5Crm%20(n-1)d%5E%7B10%7Dns%5E1%5Crm%20Cu%2C~Ag%2C~Au

ⅡB %5Crm%20(n-1)d%5E%7B10%7Dns%5E2%5Crm%20Zn%2C~Cd%2C~Hg

0 (%5Crm%20ns%5E2np%5E6):%5Crm%20_2He%2C%5C%3B_8Ne%2C%5C%3B_%7B18%7DAr%2C%5C%3B_%7B36%7DKr%2C%5C%3B_%7B54%7DXe%2C%5C%3B_%7B86%7DRn

注:我没背d区的电子排布特例。

 位-构-性关系!!!

5. 核化学

质子%5Crm%20_1%5E1H,中子%5Crm%20_0%5E1n,α粒子%5Crm%20_2%5E4He,电子%5Crm%20_%7B-1%7D%5E0e,正电子%5Crm%20_%7B%2B1%7D%5E0e

核反应式略。

(2023年1月6日)

又及:原来b站的专栏还支持LaTex!

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