the atomic number of an extra stable strongly bound atomic nucleus: 2, 8, 20, 28, 50, 82 or 126
例句
用作名词 (n.)
The magic number in the head table is incorrect. 标题表格中的幻数不正确。
Except some magic clusters and small clusters, every configuration of adatom clusters generally has two distinct adsorption ways, so the isomers always appear in pairs. 除了某些幻数团簇和小团簇外,一般每一种形状不同的结构都有两种不同的吸附方式,这就造成异构体总是成对的出现。