Note: The “Tc” in the question is not clearly defined, so in the following answer, I will use “Tc” as an abbreviation for “Technetium”, a chemical element with the symbol Tc. Definition of Technetium (Tc) Technetium is a chemical element with the symbol Tc and atomic number 43. It is the first element to be … Read more
Definition of Mo Mo, also known as Molybdenum, is a chemical element with the symbol Mo and an atomic number of 42. It is in group 6, period 5 of the periodic table. Molybdenum is a silvery-gray metal that is very hard and has good electrical and thermal conductivity. It has an average atomic mass … Read more
Definition of Nb Nb is the chemical symbol for Niobium, a chemical element in group 5 of the periodic table. In English, the name of this element is Niobium. The atomic mass of Niobium is 92.9 u, and its average atomic mass is also equivalent. Niobium simply has a molecular structure of Nb, meaning it … Read more
Definition of Zr: 1.1 Names: 1.1.1 Common name: Zirconium 1.1.2 English name: Zirconium 1.2 Atomic number: 40 1.3 Atomic mass: 91.22 1.4 Ion structure: Zr4+ Properties of Zr: 2.1 Physical properties of Zr: State: solid metal, grayish-silver in color Color: Silver-gray Odor: Odorless pH: Not applicable 2.2 Chemical properties of Zr: Zirconium is very resistant … Read more
It’s unclear what chemical substance Y referred to in the question is, so here’s an example with water (H2O) to illustrate how to write: Definition of H2O: This is a fairly familiar compound, also known as water. The structure of water consists of 2 hydrogen atoms and 1 oxygen atom. The atomic mass of water … Read more
Definition of Sr: Sr is the chemical symbol for the element Strontium, belonging to group 2, period 5 of the periodic table of chemical elements. Strontium has 4 natural isotopes, in which Sr-88 accounts for the highest ratio (82.58%). Strontium has atomic mass of 87.62 and atomic weight of 87.62 u. Its atomic structure includes … Read more
Definition of Rb 1.1 Names 1.1.1 Common name: Rubidi 1.1.2 English name: Rubidium 1.2. Atomic mass: 85.47 1.3. Atomic weight: 85.4678 u 1.3.1 Molecular structure: Rb 1.4 Ion structure: Rb+ Properties: Rb 2.1 Physical properties of Rb State: Soft metal, silver-white Color: Silver-white Smell: Odorless PH level: Not applicable 2.2 Chemical properties of Rb: Rb … Read more
Definition of Kr Kr is the chemical symbol for Krypton, a colorless, odorless, tasteless, non-flammable substance that emits blue light under suitable conditions. Krypton is present in the air at a very low ratio, only about one part per million. 1.1 Names 1.1.1 Common name: Krypton 1.1.2 English name: Krypton 1.2. Atomic mass: 83.798 g/mol … Read more
Definition of Br Br, also known as Brom, is a chemical element with the symbol Br and atomic number 35. In English, we call it Bromine. It has an atomic mass of 79.904 and belongs to Group 17 on the periodic table, also known as the halogen group. The molecular structure of Bromine is Br2, … Read more
Definition of Se Se or Selenium is a chemical element with the symbol Se and atomic number 34. It’s a nonmetal with a metallic gray color, and it’s rare to find it in nature in its elemental form. Instead, Se is commonly found in certain minerals. 1.1 Names: 1.1.1 Common name: Selenium 1.1.2 English name: … Read more