Periodic table
The periodic table is a tabular arrangement of the chemical elements, organized on the basis of their atomic number (number of protons in the nucleus), electron configurations, and recurring chemical ...
Periodic table - Wikipedia
Periodic Table's Seventh Row Finally Filled As Four New Elements Are Added
Four new elements have been added to the periodic table, finally completing the table’s seventh row and rendering science textbooks around the world instantly out of date. The elements, discovered by ...
Metallic Gels Produce Tunable Light Emission
Researchers at MIT have developed a family of materials that can emit light of precisely controlled colors — even pure white light — and whose output can be tuned to respond to a wide variety of exter...
Dynamic Periodic Table
Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, and compound search. Full descriptions from write-up sources.
Periodic table - Interactive Periodic Table of the Elements - Royal Society of Chemistry -
Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.
Lanthanide
Free learning from The Open University http://www.open.edu/openlearn/science-maths-technology/science/chemistry --- Shows both the reactions and properties o...
Periodic table - Video
A special feature, with clips from each of our 118 element videos squeezed into 10 minutes. This was made to be shown at a local media centre in Nottingham, ...
Periodic table
An 8-minute loop that highlights each and every one of the chemical elements in the periodic table. For more, see http://periodictable.com and don't miss my ...
Periodic trends
When comparing the properties of the chemical elements, recurring ('periodic') trends are apparent. This led to the creation of the periodic table as a useful way to display the elements and rationali...
Group (periodic table)
In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table, but the f-block columns (betw...
Period (periodic table)
In the periodic table of the elements, elements are arranged in a series of rows (or periods) so that those with similar properties appear in a column. Elements of the same period have the same number...
Period (periodic table) - Wikipedia
Block (periodic table)
A block of the periodic table of elements is a set of adjacent groups. The term appears to have been first used (in French) by Charles Janet. The respective highest-energy electrons in each element in...
Extended periodic table
An extended periodic table theorizes about elements beyond element 118 (the last one of period 7). Currently seven periods in the periodic table of chemical elements are known and proven, culminating ...
History of the periodic table
The periodic table is an arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations and recurring chemical properties. Elements are presented in orde...
History of the periodic table - Wikipedia
Alternative periodic tables
Alternative periodic tables are tabulations of chemical elements differing significantly in their organization from the traditional depiction of the Periodic System. Several have been devised, often p...
Alternative periodic tables - Wikipedia
Nonmetal
Apart from hydrogen, nonmetals are located in the p-block. Helium, although an s-block element, is normally placed above neon (in the p-block) on account of its noble gas properties.In chemistry, a no...
Nonmetal - Wikipedia
Metallic Gels Produce Tunable Light Emission
Researchers at MIT have developed a family of materials that can emit light of precisely controlled colors — even pure white light — and whose output can be tuned to respond to a wide variety of exter...
Group 3 element
Group 3 is a group of elements in the periodic table. This group, like other d-block groups, should contain four elements, but it is not agreed what elements belong in the group. Scandium (Sc) and ytt...
Group 3 element - Wikipedia
Group 9 element
Group 9, numbered by IUPAC nomenclature, is a group of chemical element in the periodic table. Members are cobalt (Co), rhodium (Rh), iridium (Ir) and meitnerium (Mt). These are all transition metals ...
Group 9 element - Wikipedia
The Periodic Table (book)
The Periodic Table (Italian: Il Sistema Periodico) is a collection of short stories by Primo Levi, published in 1975, named after the periodic table in chemistry. In 2006, the Royal Institution of...
The Periodic Table (book) - Wikipedia
Carbon group
The carbon group is a periodic table group consisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl).In modern IUPAC notation, it is called Group 14. In the field...
Carbon group - Wikipedia
Tanabe–Sugano diagram
Tanabe–Sugano diagrams are used in coordination chemistry to predict absorptions in the UV, visible and IR electromagnetic spectrum of coordination compounds. The results from a Tanabe–Sugano diagra...
Tanabe–Sugano diagram - Wikipedia
Barium
Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Because of its high chemical reactivity ba...
Barium - Wikipedia