The number of electrons in each element’s electron shells, particularly the outermost valence shell, is the primary factor in determining its chemical bonding behavior. The configuration of these electrons follows from the principles of quantum mechanics. The chemical properties of the atom are determined by the number of protons, in fact, by number and arrangement of electrons. See also: Atomic Number – Does it conserve in a nuclear reaction? Atomic Number and Chemical PropertiesĮvery solid, liquid, gas, and plasma is composed of neutral or ionized atoms. It is the electrons that are responsible for the chemical bavavior of atoms, and which identify the various chemical elements. In a neutral atom there are as many electrons as protons moving about nucleus.
The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10 -19 coulombs. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. The nucleus is composed of protons and neutrons. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 electrons in the atomic structure. K) 46 Thermal Conductivity 85 Specific Heat 3.6 Heat of Fusion 3 Heat of Vaporization 145.92 Atomic Number of Lithium.You can effortlessly find every single detail about the elements from this single Interactive Periodic table.Lithium – Properties Element Lithium Atomic Number 3 Symbol Li Element Category Alkali Metal Phase at STP Solid Atomic Mass 6.941 Density at STP 0.535 Electron Configuration 2s1 Possible Oxidation States +1 Electron Affinity 59.6 Electronegativity 0.98 1st Ionization Energy 5.3917 Year of Discovery 1817 Discoverer Arfvedson, Johan August Thermal properties Melting Point 180.5 Boiling Point 1342 Thermal Expansion µm/(m Let me tell you how this Interactive Periodic Table will help you in your studies.ġ).
#Lithium periodic table free
Free Gift for you: Interactive Periodic Table Lithium is so reactive that it is never found in its pure form, but it always exists along with other elements in a compound form.Density of Lithium is around half of that of waters’ density (Density of Lithium = ½ density of water).Lithium is highly corrosive, so it is stored in kerosene oil or it is stored in an inert atmosphere.Lithium is a metal, but it is so soft that it can even be cut using a kitchen knife.Lithium produces crimson red flame when heated in a Bunsen burner.If Lithium catches fire, then you cannot extinguish that fire using water.Lithium is a metal, but it floats on water.The 7 interesting facts about Lithium are mentioned below. Hence, lithium gives crimson red flame when it is heated.
This emitted radiation of 670.8 nm is nothing but a visible crimson red light. When this excited electron loses its energy, it again comes back to the lower energy level.ĭuring this phenomenon, it emits an electromagnetic radiation having a wavelength of around 670.8 nm. When Lithium metal is heated in a flame, its outermost electron gets excited onto a higher energy level. John August Arfwedson in 1817 CAS number Protons in Lithium 3 Neutrons in Lithium 4 Electrons in Lithium 3 Symbol of Lithium Li Atomic mass of LithiumĢ, 1 Electronic configuration of Lithium 2s 1 Atomic radius of Lithiumġ82 picometers (van der Waals radius) Valence electrons in Lithiumġ 1st Ionization energy of Lithium 5.392 eV Electronegativity of LithiumĠ.98 (Pauling scale) Crystal structure of LithiumīCC (Body Centered Cubic) Melting point of Lithium 453.65 K or 180.5 ☌ or 356.9 ☏ Boiling point of Lithium 1603 K or 1330 ☌ or 2426 ☏ Density of Lithium 0.534 g/cm 3 Main isotope of Lithium 7Li Who discovered Lithium and when? Group: 1, Period: 2, Block: s Category of Lithium elementĪlkali metals Atomic number of Lithium, or Silvery white State of Lithium at STP Solid Position of Lithium in Periodic table Lithium Element (Li) Information Appearance of Lithium So if you want to know anything about the Lithium element, then this guide is for you. In fact, the table mentioned below is the perfect information box (Which gives you every single detail about the Lithium element in Periodic table.) This is a SUPER easy guide on Lithium element.
0 kommentar(er)
