Atomic NumberAtomic Number of Cerium
Atomic Number of Cerium is 58.
Chemical symbol for Cerium is Ce. Number of protons in Cerium is 58. Atomic weight of Cerium is 140.116 u or g/mol. Melting point of Cerium is 798 °C and its the boiling point is 3257 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Cerium
Cerium is a kind of grey metal, quite shiny and easily reacting with oxygen. It was named after an asteroid which, in turn, was named after a Roman god of agriculture. This element has no biological importance and can be found in abundance in minerals and ores. It is about the same common as lead and zinc. It is widely used in alloys with iron and other elements for various industrial needs, including producing lights, bulbs, flat screen TVs, and so on.
Uses of Cerium
Cerium, a grey, soft metallic element with the symbol Ce, was used in gas mantles. It is widely used in mischmetal (mixed metal), also known as cerium mischmetal, alloys. Its most common use is in the making of lighters and torches. Cerium(IV) oxide (CeO2) employed as a polishing compound in chemical-mechanical planarization. Cerium(Ill) oxide has an application as a catalyst. Also, Cerium(IV) sulfate, another alloy with the formula Ce(SO4)2, is exploited as an oxidising agent. Cerium sulfide is employed as a pigment, because of its red color.
Compounds with Cerium
- CeF3: Cerium(III) fluoride
- CeO2: Cerium(IV) oxide
- Ce(SO4)2: Cerium(IV) sulfate
Properties of Cerium Element
| Atomic Number (Z) | 58 |
|---|---|
| Atomic Symbol | Ce |
| Group | |
| Period | 6 |
| Atomic Weight | 140.116 u |
| Density | 6.77 g/cm3 |
| Melting Point (K) | 1068 K |
| Melting Point (℃) | 798 °C |
| Boiling Point (K) | 3716 K |
| Boiling Point (℃) | 3257 °C |
| Heat Capacity | 0.192 J/g · K |
| Abundance | 66.5 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Lanthanide |
| Electronegativity (Pauling) χ | 1.12 |
| Ionization Energy (eV) | 5.5387 |
| Atomic Radius | 185pm |
| Covalent Radius | no datapm |
| Valence Electrons | 2 |
| Year of Discovery | 1803 |
| Discoverer | von Hisinger and Berzelius |