BBC4 年
Metals and non-metals in the periodic table
The ions formed have a full outer electron shell, so are very stable. See the study guide on groups in the periodic table for more information.
BBC4 年
Atomic structure and the periodic table
The periodic table The periodic table is a chart ... The word ‘halogen’ means 'salt former'. Group 0 and testing ions Flame tests identify alkali metal ions in compounds.
来自MSN1 个月
Scientists Possibly Found A Way To Create New Superheavy Elements To Add To The Periodic Table
Currently, there are 118 known elements on the periodic table ... isotope plutonium-244 with additional neutrons and vaporized ions of titanium. They think the same strategy could be used to ...
Live Science on MSN2 个月
Scientists just got 1 step closer to creating a 'superheavy' element that is so big, it ...
Researchers may have found a way to create a new superheavy element, known as "element 120," which would be so hefty that it ...