Search results
Results from the WOW.Com Content Network
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 ...
List of chemical elements — with basic properties like standard atomic weight, m.p., b.p., abundance; Abundance of the chemical elements; Abundances of the elements (data page) — Earth's crust, sea water, Sun and Solar System
1.03 – 0.005: primordial gas 11 Na Sodium: Coined by Humphry Davy who first isolated it, from English soda (specifically caustic soda), via Italian from Arabic ṣudāʕ 'headache' · Symbol Na, from Neo-Latin natrium, coined from German Natron 'natron' 1 3 s-block 22.990: 0.968: 370.87: 1156: 1.228: 0.93: 23 600: primordial solid 12 Mg Magnesium
J.A. Dean (ed), Lange's Handbook of Chemistry (15th Edition), McGraw-Hill, 1999; Section 6, Thermodynamic Properties; Table 6.4, Heats of Fusion, Vaporization, and Sublimation and Specific Heat at Various Temperatures of the Elements and Inorganic Compounds
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.
A version of the periodic table indicating the origins – including stellar nucleosynthesis – of the elements. The most important reactions in stellar nucleosynthesis: Hydrogen fusion: Deuterium fusion; The proton–proton chain; The carbon–nitrogen–oxygen cycle; Helium fusion: The triple-alpha process; The alpha process; Fusion of ...
Periodic table of the chemical elements showing the most or more commonly named sets of elements (in periodic tables), and a traditional dividing line between metals and nonmetals. The f-block actually fits between groups 2 and 3 ; it is usually shown at the foot of the table to save horizontal space.
In the following table, ... 11 Na sodium; use: 370.944 K: ... Boiling points of the elements (data page) List of chemical elements