Modern periodic table, periodic properties

Symbol of fluorine Fluorine is a chemical element with the symbol ‘F’ and atomic number 9. It is found in nature in small amounts. It is the lightest of the halogens and exists under standard conditions as a highly toxic, pale yellow diatomic gas with a high toxicity index. Fluorine In the periodic table, fluorine […]

Actinoids: Can you think of as many different aspects as you can? Do you understand the principles of nitrogen, oxygen, and carbon? Is that all? So, what about lanthanoids and actinoids series? What are actinoids? Actinoides are periodic table elements having atomic numbers ranging from 90 to 103. The  lanthanoid and actinoid series, also known

Boron is a rare element in the Solar System and the Earth’s crust because it is formed primarily through cosmic ray spallation and supernovae, rather than stellar nucleosynthesis. By weight, it makes up around 0.001% of the Earth’s crust. It concentrates on Earth due to the water-solubility of its more common naturally occurring constituents, the

Helium Helium is the lightest noble gas ever discovered, and it is the only element in the Helium periodic table. It was discovered by the French astronomer Pierre Janssen in 1868, who also noticed a bright yellow line in the solar chromosphere spectrum during an eclipse at the time of discovery. When looking at the

Halogens are the 5 elements on the periodic table that form a group called Group 7A, and the elements are chlorine, bromine, fluorine, iodine, and astatine. These five elements have special characteristics and properties that make them unique and different from the other elements on the periodic table. Interestingly, these five elements are not found

A chemical element of the oxygen group, commonly known as a chalcogen, is any of the six chemical elements that make up Group 16 (VIa) of the periodic classification, which are oxygen (O), sulphur (S), selenium (Se), tellurium (Te), polonium (Po), and livermorium (Lv). Since the discovery of polonium in 1898, scientists have recognized a

Transition metals are elements that have (or can easily form) partially filled d orbitals. The Transition elements that are the d-block elements in groups 3–11. This criterion is also met by the f-block elements, also known as inner transition metals (lanthanides and actinides), because the d orbital is partially occupied before the f orbitals. Because

Identical chemical properties are shared by the elements arranged in periodic table groupings (vertical columns). Members of a group have the same number and distribution of electrons in their valence shells, resulting in this resemblance. But there are other patterns in the periodic table as well. For example, the metallic nature of the atoms rises

The magnetic quantum number (ml) is one of four quantum numbers in atomic physics and quantum chemistry that characterise an electron’s unique quantum state (the others being the primary, azimuthal, and spin). The magnetic quantum number is used to compute the azimuthal component of an orbital’s orientation in space and to differentiate the orbitals accessible

The group 18 elements involve helium, argon, krypton, neon, xenon, and radon. In the outermost orbit, the members of the group possess eight electrons. However, helium has only two electrons. Group 18 elements are chemically unreactive and are gases that do not form compounds. They are located at the extreme right of the periodic table