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2. File:The Periodic Table of the Elements in Pictures.pdf

   en.wikipedia.org/wiki/File:The_Periodic_Table_of...

   English: This pictorial periodic table is colorful, boring, and packed with information. In addition to the element's name, symbol, and atomic number, each element box has a drawing of one of the element's main human uses or natural occurrences. The table is color-coded to show the chemical groupings.

3. List of chemical elements - Wikipedia

   en.wikipedia.org/wiki/List_of_chemical_elements

   A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...

4. Periodic table - Wikipedia

   en.wikipedia.org/wiki/Periodic_table

   The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry and is widely used in physics and other sciences.

5. File:The Periodic Table of the Elements, in pictures.png

   en.wikipedia.org/wiki/File:The_Periodic_Table_of...

   You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...

6. File:Simple Periodic Table Chart-blocks.svg - Wikipedia

   en.wikipedia.org/wiki/File:Simple_Periodic_Table...

   Chemistry; Column groups and row groups; Glossary of chemistry terms; Group (periodic table) List of chemical element name etymologies; Main-group element; Period (periodic table) Table of nuclides (segmented, narrow) Table of nuclides (segmented, wide) The Elements (song) Talk:Period (periodic table) User:Aenon94; User:Albert Poliakoff; User:C ...

7. Atomicity (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Atomicity_(chemistry)

   The most common values of atomicity for the first 30 elements in the periodic table are as follows: ... 20 Calcium (Ca) 1 21 Scandium (Sc) 1 22 ... (chemistry) 6 ...

8. Template:List of chemical elements - Wikipedia

   en.wikipedia.org/wiki/Template:List_of_chemical...

   Element Origin of name [1] [2] Group Period Block Standard ... 1.6: 20: primordial solid 42 ... Russian chemist who proposed the periodic table: f-block groups 7 f ...

9. List of elements by atomic properties - Wikipedia

   en.wikipedia.org/wiki/List_of_elements_by_atomic...

   This is a list of chemical elements and their atomic properties, ordered by atomic number (Z). Since valence electrons are not clearly defined for the d-block and f-block elements, there not being a clear point at which further ionisation becomes unprofitable, a purely formal definition as number of electrons in the outermost shell has been used.