作业帮关于原子直径和离子直径,到底怎么看它们的变大变小?附题,坐等1.what is the oxidation number for zinc?2.how does zinc's electron configuration acount for this oxidation number?3.what factor contributes to the difference in react
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关于原子直径和离子直径,到底怎么看它们的变大变小?附题,坐等1.what is the oxidation number for zinc?2.how does zinc's electron configuration acount for this oxidation number?3.what factor contributes to the difference in react
关于原子直径和离子直径,到底怎么看它们的变大变小?附题,坐等
1.what is the oxidation number for zinc?
2.how does zinc's electron configuration acount for this oxidation number?
3.what factor contributes to the difference in reactivity between potassium and cesium?which element is more reactive?
4.using the periodic table as a g,uide,list the following ions in order of increasing ionic radius.Na＋,Cl-,S2-,F-,Al3+,Se2-
关于原子直径和离子直径,到底怎么看它们的变大变小?附题,坐等1.what is the oxidation number for zinc?2.how does zinc's electron configuration acount for this oxidation number?3.what factor contributes to the difference in react
简单的说,原子：同周期,核电荷大的半径小,同主族,周期大的大.离子：同样的电子结构,比如都是288,核电荷大的半径小,；若层数不同,层数多的半径大.
Cl- 288 < S2- 288,,F-28>Na+ 28> Al3+ 28,Se2-四层电子最大.
所以由小到大应该是：Al3+ < Na+ < F-
看组成的更小的粒子运动情况了
1.+2
2.Zn：1s2 2s2p6 3s2p6d10 4s2 → Zn2+：1s2 2s2p6 3s2p6d10
3.the number of atomic orbital and nuclear charge number ；cesium
4.Al3+ < Na+ < F- < Cl- < S2- < Se2-
原子半径，周期表向下增大向右减小，离子同层则化合价高半径小，