If I pick an angle of 60 degrees, these are some numbers like half and root 3 over 2.
要是我选择一个 60°的角,上面的系数就会是二分之一和二分之根号三
Then minus 1/2 of 2, because we only have one bond or 2 electrons in a bond.
然后减去二的二分之一,因为我们只有一个键,一个键就是两个电子。
Fifty, 55% of you or so are likely to end up with some kind of a B.
二分之一左右的人以80分结课。
But since in drawing Lewis structures actually, in some cases you do, you can draw a dotted line that means a 1 and 1/2 bond, but most in most cases, we just draw out both resonance structures, and the way that we say it's a resonance structure is that we put it in the brackets and we put an arrow between it.
但是由于在画路易斯结构时,其实,在某些情况下是可以的,你可以画一条虚线来表示一又二分之一键,但是在多数情况下,我们就把两个结构都画出来,而我们说这是一个共振结构的表示的方法是,把它们放在括号里,并在中间放一个双箭头。
S Formal charge equals v minus l minus 1/2 s.
形式电荷等于,V,减去,L,再减去二分之一倍的。
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