Definition of Yb Yb, also known as Ytterbium, is one of the chemical elements present in the periodic table, symbolized as Yb with the atomic number 70. Yb belongs to the lanthanide group and is a metal. The atomic mass of Yb is 173.04 amu. Ytterbium forms ions when it loses or gains electrons in … Read more
Definition of Tm Tm, or Thulium, is a chemical element with the symbol Tm and atomic number 69. It is a soft, silver-colored transition metal and belongs to the lanthanide group of the periodic table. The English name for Tm is Thulium. The atomic mass of Tm is 168.93421(2) u. The relative atomic mass of … Read more
Er is the chemical symbol for the element Erbium. Erbium is a chemical element in the lanthanide group on the periodic table, with the symbol Er and atomic number 68. 1.1 Names 1.1.1 Common name: Erbium 1.1.2 English name: Erbium 1.2 Atomic mass: 167.26 1.3 Atomic weight: 167.26 u 1.3.1 Molecular structure: Erbium is an … Read more
Example with the Chemical Substance Water (H2O): Definition of H2O: H2O, commonly known as water, is the most important chemical substance on Earth. This chemical comprises two hydrogen atoms (H) and one oxygen atom (O). The molecular weight of water is about 18 g/mol, calculated from the total mass of all atoms in a water … Read more
Definition of Dy Dy is the symbol for Dysprosium, a chemical element in the Lanthanide group of the periodic table. The atomic mass of Dysprosium is 162.500 atomic mass units and its atomic number is 66. The molecular structure of Dysprosium is simple with one Dysprosium atom forming the Dy molecule. Dysprosium does not form … Read more
Definition of Tb Tb is the symbol for the chemical element Terbium, an element in the lanthanide group of the periodic table. 1.1 Names of Tb 1.1.1 Common name: Terbium 1.1.2 English name: Terbium 1.2 The atomic number of Terbium is 65. 1.3 The atomic mass of Terbium is 158.92535(2) u. 1.4 Terbium can form … Read more
Definition of Gd Gd or Gadolinium is a chemical element belonging to the rare metal group in the periodic table, with the symbol Gd and atomic number 64. The English name for Gd is Gadolinium. Gd has an atomic mass of 157.25 and it belongs to the lanthanides. The ion structure of Gd is usually … Read more
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