资讯

New Scientist24 天
A new version of the periodic table could change how we measure time
An alternative periodic table of elements focusing on highly charged ions reveals new science that could support the quest ...
BBC1 年
Atomic structure and the periodic table
The periodic table - AQA Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic structures model how ...
BBC2 个月
Atomic structure and the periodic table
The periodic table - AQA Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic structures model how ...