http://kjd.edu-ctr.pref.kanagawa.jp/edb2/chem/
関連: 元素周期律表 http://www.h5.dion.ne.jp/~wing-x/academic/periodic/ −移転→ http://takagi1.net/academic/periodic/ −移転→ https://takagi1.net/academic/periodic/ http://www.h5.dion.ne.jp/~wing-x/ezhtml/inw3/inw_0702230.html#3 −移転→ http://takagi1.net/g-sys/inw3/3_inw_0702230.html −移転→ https://takagi1.net/ezhtml/inw3/inw_0702230.html#3 $/delete$