Eu is the symbol for Europium, a chemical element with atomic number 63 in the periodic table. The English name for Europium is also Europium. Europium is a rare metal, belonging to the lanthanide group in the periodic table. The atomic mass of Europium is 151.964. The average atomic mass of Europium is about 152.0 … Read more
Definition of Sm Sm stands for Samarium, a chemical element in the lanthanide group with a proton number of 62. 1.1 Names 1.1.1 Common name: Samarium 1.1.2 English name: Samarium 1.2 Atomic mass: 150.36(2) u 1.3 Atomic weight: 62 1.3.1 Molecular structure: Samarium is a pure chemical element, which can exist in compound form. 1.4 … Read more
Definition of Pm Pm is the symbol for Promethium, a chemical element in the periodic table with the atomic number Z=61. Promethium is one of the rarest chemical elements, it does not exist in its natural state on Earth, but can be produced in nuclear reactions. 1.1 Names 1.1.1 Common name: Promethium 1.1.2 English name: … Read more
Definition of Nd Nd is the symbol in the periodic table for the element Neodymium, with the atomic number 60. 1.1 Names 1.1.1 Common name: Neodymium 1.1.2 English name: Neodymium 1.2. Atomic number: 60 1.3. Atomic weight: 144.242 u 1.4 Ion formation: Neodymium typically forms Nd3+ ions in compounds. Properties of Nd 2.1 Physical properties … Read more
Definition of Pr: Praseodymium, also known as Pr, is a chemical element with the symbol Pr and atomic number 59. Praseodymium belongs to the lanthanide group in the periodic table, a group of elements collectively referred to as “rare earth elements”. Praseodymium has an atomic mass of 140.90765u. Praseodymium molecules commonly exist as Pr+3 ions … Read more
Definition of Ce Ce, or Cerium, is a chemical element with the symbol Ce and atomic number 58. It is a transition element, belonging to the lanthanide group in the periodic table. Cerium was discovered by Jöns Jacob Berzelius and Wilhelm Hisinger in 1803 in Sweden. Cerium has an atomic mass of approximately 140.12 u. … Read more
Definition of La La, or Lanthanum, is a chemical element in the periodic table with the symbol La and atomic number 57. The English name for “La” is “Lanthanum”. It falls under group 3, period 6 of the periodic table. The atomic mass of La is 138.90547(7) u, it belongs to the lanthanide series and … Read more
Definition of Ba Ba, also known as Bari, is a chemical element with the symbol Ba and the atomic number 56. Bari is known in English as Barium. Ba has an atomic mass of 137.327 u and an atomic weight of about 137.33. A Ba molecule is made up of a single atom of Ba. … Read more
Definition of Cs Cs, also known as Cesium, is a chemical element with the symbol Cs and atomic number 55. The atomic mass of Cs is 132.9 amu. Cs is an element of Group 1 of the periodic table, known as alkali metals. Cs molecules are made up of one Cs atom. The most common … Read more
Definition of Xe Xenon (Xe) is a chemical element belonging to the group of noble gases in the periodic table. Xe has properties of being colorless, odorless, tasteless, non-irritating, and can form complex compounds. 1.1 Names 1.1.1 Common name: Xenon, Xe 1.1.2 English name: Xenon, Xe 1.2. Atomic mass: 131.293(6) u 1.3. Atomic number: 54 … Read more