英语翻译1 ,all orbital hold a max of 2 electrons.An orbital containing 2electrons is called a filled orbital2,Electros occupying the same orbital must have oppisite spin,indicated with arrow ↑↓.3,electrons fill up orbitals at the lowest energ

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英语翻译1 ,all orbital hold a max of 2 electrons.An orbital containing 2electrons is called a filled orbital2,Electros occupying the same orbital must have oppisite spin,indicated with arrow ↑↓.3,electrons fill up orbitals at the lowest energ

英语翻译1 ,all orbital hold a max of 2 electrons.An orbital containing 2electrons is called a filled orbital2,Electros occupying the same orbital must have oppisite spin,indicated with arrow ↑↓.3,electrons fill up orbitals at the lowest energ
英语翻译
1 ,all orbital hold a max of 2 electrons.An orbital containing 2electrons is called a filled orbital
2,Electros occupying the same orbital must have oppisite spin,indicated with arrow ↑↓.
3,electrons fill up orbitals at the lowest energy sublevels first.
4,the lowest or most stable arrangement of electrons in a sublevel is the one with the greatest number of parallel spins(this is Hund` rule)this means when orbitals of the same energy are available ,electrons will avoid pairing if possible ,by entering separate sub-orbitals.
这是第一段了.
还有啊...辛苦了..
the general trend in ionisation energy is for an increase across each period due to the increaseed effective nuclear charge on the valence electrons.However ,we need to explain these first ionisation eneygies that do not follw this trend.
B(硼) has a lower first ionisation energy than Be(pi) the 2p orbital is slightly further from the nucleus than 2s and this greater distance out-weighs the increased effective nuclear charge on the valence electtrons .Thus less energy is required to remove boron`s least toghtly held electrons..
就这么多了 、.

英语翻译1 ,all orbital hold a max of 2 electrons.An orbital containing 2electrons is called a filled orbital2,Electros occupying the same orbital must have oppisite spin,indicated with arrow ↑↓.3,electrons fill up orbitals at the lowest energ
1.每一条轨道最多有2个电子.一个有两个电子的轨道就叫做filled.
2.同一轨道里的两个电子自旋方向相反 分别用↑↓表示
3.电子从能量最低的能级开始填满轨道.（s p d...）先从s开始~等s填满了才会填p...
4.电子在简并轨道上排布时,将尽可能分占不同的轨道,且自旋平行——洪德规则（Hund's rule).
并且对于同一个能级(sublevel),电子排布有最大数量的平行电子时最稳定
换句话说就是 一个sublevel处在全满（s^2、p^6、d^10、f^14）半满（s^1、p^3、d^5、f^7）或者全空（s^0、p^0、d^0、f^0）时最稳定.
第二段
一般而言,同周期主族元素从左到右作用到最外层电子上的有效核电荷逐渐增大,电离能呈增大趋势.但是我们需要解释为什么一些元素的第一电离能不符合这个趋势.
B的第一电离能比Be小.B的最外层电子处于2p轨道上,Be的处于2s轨道上.因为2p轨道相对于2s而言,离原子核较远.这个距离抵消了有效核电荷的增大.所以把B的最外层电子移开所需要的能量就少了.
AP吗?

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