chemicallibrary

Hg Definition Hg is the chemical symbol for the element Mercury, also known as Quicksilver in Vietnamese. Mercury is a transition metal that belongs to group 12 of the periodic table, with an atomic mass of 200.59 and an atomic number of 80. Being a heavy metal, mercury has a unique molecular structure of Hg2, … Read more

Definition of Au Au is the chemical symbol for gold, a chemical element in the periodic table with atomic number 79. 1.1 Names 1.1.1 Common name: Gold 1.1.2 English name: Gold 1.2 Atomic mass: 197 u 1.3 Atomic weight: 79 u 1.3.1 Molecular structure: Gold is a pure element, does not form molecules. 1.4 Ion … Read more

Definition of Pt Pt is the symbol for Platinum, a chemical element belonging to the transition metals group in the periodic table. Platinum is known as “Platinum” in English. It has an atomic mass of 195.084 and an atomic weight of 195.1. The molecular structure of Pt is simple, containing only one Pt atom. Platinum … Read more

Definition of Ir Ir is the symbol for Iridium, a chemical element belonging to the transition metals group in the periodic table. Its English name is Iridium. The atomic mass of Ir is 192.217 u, making it one of the heaviest elements existing on Earth. Iridium molecules usually exist as single atoms. The ions of … Read more

Definition of Os Os – or Osmium – is a chemical element belonging to the group of transition elements, group 8, period 6 in the periodic table. The atomic mass of Os is 190.2, with a molecular structure consisting of 76 electrons, 76 protons, and 114 neutrons. The ion structure of Osmium is usually Os2+ … Read more

Definition of Re Re or Rhenium is a chemical element in the periodic table with the symbol Re and the atomic number 75. 1.1 Names: 1.1.1 Common name: Rhenium 1.1.2 English name: Rhenium 1.2. The atomic mass of Rhenium is 186.207 u. 1.3. The atomic number of Rhenium is 75. 1.3.1 Molecular structure: Rhenium is … Read more

Definition of W W, also known as Wolfram, or in English as Tungsten, is a chemical element with the symbol W and atomic number 74. W is a metallic element, located in group 6 of the periodic table. History has recorded Wolfram since the 18th century, but most scientists have referred to Wolfram as a … Read more

Note: As “Ta” is not a specific chemical substance, I will take Hydrogen (H2) as an example. Definition of Hydrogen Hydrogen is a chemical element with the symbol H and atomic number 1. It is the lightest and most abundant chemical element in the universe, accounting for approximately 75% of the universe’s visible mass. 1.1. … Read more

HF is a colorless liquid, with an unpleasant odor, and very toxic. HF is known as hydrofluoric acid, the English name is Hydrofluoric Acid. HF consists of one hydrogen atom and one fluorine atom, the atomic mass of hydrogen is 1 and fluorine is 19, so the atomic mass of HF is 20. In chemistry, … Read more

1.1 Lu, or Lutetium, is the English name of the chemical element with the symbol Lu and atomic number 71. It is a transition metal belonging to the Lanthanide group in the periodic table. The atomic mass of Lutetium is 174.97 atomic mass units (u). Its molecular structure is very complex, and it does not … Read more