卤素元素(左)和稀有气体(右) 最后,元素周期表底部的镧系和锕系元素,以及元素钪和钇,我们把他们统称做稀土元素〔Rare Earth Element〕,他们的储量比较丰富,例如:铈元素的储量和铜的储量类似。那为什么叫他们稀土元素呢?因为他们几乎都存在于一种叫独居石矿〔monazite〕中,很难将他们分离,所以产量稀少。 镧系元素和锕...
Periodic Table 元素周期表(相对分子量) PERIOD 1 IA 18 VIIIA 1 1.008 2 4 1 H Group IUPAC Group CAS Metal Semi Metal Non Metal He Alkaline Metal Chalcogens Element Hydrogen 2 IIA 1 IA Alkaline Earth Metal Halogens Element 13 IIIA 14 IVA 15 VA 16 VIA 17 VIIA Helium 3 6.94 4 9.01 Ato...
Elements on The Periodic Table Every chemical element has a specific atomic number, which provides insight into the number of protons present within its nucleus. All isotopes of an element fall under a single cell on the periodic table, since they all share the same atomic number. ...
When Dmitri Mendeleev drew up the periodic table, he grouped elements of similar properties. Based on the number of electrons, a scientist can determine which group to place an element into.This pattern is called a period(or row) on the periodic table. How do I read the periodic table? Th...
H: This is the symbol for Hydrogen, the most common element in the universe. He: This symbol represents Helium, a noble gas used in balloons and as a cooling medium. Li: This stands for Lithium, a metal used in rechargeable ba...
Periodic table of elements with information on chemical elements like gold, silver, iron, neon, helium, chlorine, copper, cobalt, and more
Periodic table of elements is a simple app that you can look up elements common properties. it is simple to use, contains a lot of information about elements and their behavior. it is interactive. you can click at any elements to see its property. on th
Explore the element of your choice through this periodic table. 12 3456789101112131415161718 1 H 2 He 3 Li 4 Be 5 B 6 C 7 N 8 O 9 F 10 Ne 11 Na 12 Mg 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar 19 K 20 Ca 21 Sc 22 Ti 23 V 24 Cr 25 Mn...
Skip to Periodic TableSkip to elements sorted by links (more useable to non-graphical browsers and handhelds)Skip to site menu on this page. This periodic table of elements provides comprehensive data on the chemical elements including scores of properties, element names in many languages and most...
1 Alkali and Alkalinse earth metals 2 Transition Metals More so than any of the other major groups of elements in the periodic table, the transition metals have shaped human history and have been the workhorses of industry. The disc...