Definition of Ca: 1.1 Names: 1.1.1 Common name: Calcium 1.1.2 English name: Calcium 1.2 Atomic mass: 40.08 1.3 Atomic weight: 40.08 1.3.1 Molecular Structure: Calcium is a pure chemical element, it has no molecules. 1.4 Ion structure: Ca^2+ Properties of Ca: 2.1 Physical properties of Ca: State: Solid at room temperature Color: Silver-white Smell: Odorless … Read more
Definition of K K is the chemical symbol of the element Potassium. 1.1 Names 1.1.1 Common name: Potash 1.1.2 English name: Potassium 1.2 Atomic mass: 39.0983 1.3 Atomic weight: approximately 39.09 1.3.1 Molecular structure: Potassium is an element that does not contain molecules. 1.4 Ion structure: K+ (potassium ion) Properties of K 2.1 Physical properties … Read more
Definition of Ar Ar (Argon) is a chemical element in the periodic table with the symbol Ar and an atomic number of 18. It is an element of the noble gases group. The atomic mass of Ar is 39.948 amu. An Ar molecule is simple, consisting of one Ar atom. Ar does not form ions … Read more
Definition of Cl: Chlorine, symbolized as Cl, is a chemical element with the proton number of 17 in the periodic table. Its English name is Chlorine. The atomic mass of Chlorine is 35.5, and the atomic weight is also 35.5. Chlorine has a molecular structure of Cl2, consisting of 2 Cl atoms combined together. Chlorine … Read more
Give 5 examples [if any] Application of S Give 5 examples Safe when working with S Tips to note when interacting and working with S Exercises and questions with S The above is an introduction and summary of knowledge about the substance S that we need to grasp firmly. Please pay attention to the parts … Read more
Example of using the substance “Copper (Cu)” Definition of Copper (Cu) Copper is a reddish-brown metal. It is found in nature both in its pure elemental form and as a part of numerous minerals. In English, it is known as “Copper”. The atomic number of copper is 29. The atomic weight of copper is 63,546(3) … Read more
Definition of Si: Si, also known as Silicium (English name: Silicon) is a chemical element in the periodic table. The atomic mass of Si is 28.09 and it is in group 14, period 3. The molecular structure of Si is mainly SiO2 and SiC. In its natural state, Si usually exists in the form of … Read more
Definition of Al: Aluminium (Al) is a chemical element belonging to group 13 (group IIIA) in the periodic table. It has a proton number of 13 and an atomic mass of 27u. 1.1 Names: 1.1.1 Common name: Aluminium 1.1.2 English name: Aluminum (US) or Aluminium (UK) 1.2 Atomic mass: 27g/mol 1.3 Molecular structure: Al is … Read more
Definition of Mg Mg is the symbol for magnesium, a chemical element with the atomic number 12 on the periodic table. Magnesium is an alkaline earth metal, silver-white, ductile and light. Magnesium has an atomic weight of 24.3050 and its atomic structure consists of 12 protons, 12 neutrons and 12 electrons. When forming an ion, … Read more
Definition of Na Sodium (Na) is a chemical element belonging to Group I in the periodic table, with an atomic number of 11. Sodium is a soft, silver-white alkali metal. It is the first alkali metal in the alkali metal series and has a low melting point. Sodium has an approximate atomic mass of 22.99 … Read more