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Electronic Structure
by atomic number
Elements have been and still are being added
1950
you find the ones that have been added to the periodic table in the old days
A Periodic table The Periodic Table of the Elements.
The Noble Gases, It added a new "Group" to the periodic Table.
atomic number
1898
As of January 2014, there have been 12 named elements added to the periodic table since 1960.
Symbols of elements areEnglish or latinwords or roots.
the periodic table of elements In this table, elements having similar chemical properties are stacked up. The chemical properties are determined by how many free bonds an atom has open, which is related to how many electrons are in that element's outer shell.