So, even though we don't have the lithium anymore, we still keep that atomic number 7 around.
尽管现在它不含锂了,但是作为原子量的七,还是在一定程度上保留了下来。
This is because even though z, the atomic number is still increasing, we are also getting further away from the nucleus.
从有效核电量方面来想一想为什么,这是因为,尽管,Z,原子序数依然在变大,但我们同时也在离原子核越来越远。
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