Provides comprehensive data for each element of the periodic table of elements including up to 40 properties, names in 10 languages and common chemical compounds. Information also provided for 3,600 nuclides and 4,400 nuclide decay modes.
SYMBOL C ATOMIC NUMBER 6 ATOMIC MASS 12.01115 FAMILY Group 14 (IVA) Carbon PRONUNCIATION CAR-bun Carbon is such an important element that an entirely separate field of chemistry is devoted to this element and its compounds. Organic chemistry is the study of carbon compounds. ...
Isotopes are two or more forms of an element. Isotopes differ from each other according to their mass number. The number written to the right of the element's name is the mass number. The mass number represents the number of protons plus neutrons in the nucleus of an atom of the element...
Telluriumis a silvery-white element (symbol Te) with properties intermediate between those of metals and nonmetals; it makes up approximately one part per billion of the Earth’s crust. Like selenium, it is less often found uncombined than as compounds of metals such as copper, lead,silver, ...
"A chemical element is a pure chemical substance consisting of a single type of atom distinguished by its atomic number, which is the number of protons in its atomic nucleus. Elements are divided into metals, metalloids, and non-metals. Familiar examples of elements are carbon, nitrogen, ...
In the formulas of ionic compounds, simple ions are represented by thechemical symbolfor the element: Cl means Cl−, Na means Na+, and so on. When individual ions are shown, however, thechargeis always included. Thus, the formula ofpotassium bromideis given as KBr, but, when the potass...
Carbon dioxide molecule pop art style green vector banner. CO2 chemical element linear style vector icon. Zero carbon emission CO2 neutral greenhouse gas emission reduction concept illustration.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含
The torch is traditional Chinese The cloud symbol and paper scroll are creative, and the fuel used for the torch is propane. known Under 25 ℃, and 101 kpa, open 1 molc - H in the chemical bonds to absorb The energy of 415kJ, the bond in 1molc-c is going to absorb 331kJ ...
A n important physical property of copper is the element's color—reddish-brown. An important chemical property is the way copper reacts with oxygen. It turns the reddish-brown tint green. This change of color is a result of the copper combining with water and carbon dioxide in moist air....
[220] devoted to graphene and fullerenes, since they all contain carbon–carbon bonds, and, according to the IUPAC standards, they should be classified as organic compounds (although, in general, this means that all chemical compounds consisting of atoms of only one chemical element are ...