In the periodic table, the elements are listed in order of increasing atomic number Z. 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. K) - Thermal Conductivity 0.0089 Specific Heat 0.48 Heat of Fusion 3.23 Heat of Vaporization 10.2 Atomic Number of ChlorineĬhlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure.Write Electronic Structure of Chlorine.Chlorine – Properties Element Chlorine Atomic Number 17 Symbol Cl Element Category Halogen Phase at STP Gas Atomic Mass 35.453 Density at STP 3.214 Electron Configuration 3s2 3p5 Possible Oxidation States +1,5,7/-1 Electron Affinity 349 Electronegativity 3.16 1st Ionization Energy 12.9676 Year of Discovery 1774 Discoverer Scheele, Carl Wilhelm Thermal properties Melting Point -101 Boiling Point -34.6 Thermal Expansion µm/(m Show Electronic configuration of Chlorine. On which block Chlorine element is present? ĩ) It is Generally use as an solvent for chemical reaction 10) Chlorine is main constituents of extraction of bromin chloroform and carbon tetra chlorideħ) It is use as an disinfectant to kill bacteriaĨ) It is mostly use in industries for make dyes,textiles ,paints. In chlorine 2 electron place in K shell, 8 electrons place in L shell and 7electrons place in M shellģ) Valency : Chlorine show 1 valency In outer shell required only 1 electron to complete octateĤ) Atomic radius : Atomic radius of chlorine is 79 pmĥ) Reactivity : it is more reactive than fluorineģ) It is generally use to make poly vinyl chloride polymer 4) It is mostly use in chemical weaponsĥ) It is use as a oxidising agent in substitution reactionĦ) It is use to made anaesthesia i.e. In this isotopes 17 proton, 17 electron and 19 neutron is present It is present 24% in natureĮlectronic configuration of chlorine is 1S 2 2S 2 2P 6 3S 2 3P 5 Electronic configuration in concert of shell is 2,8,7 It is toxic in natureģ5 Cl : atomic weight of this isotope is 34.9 In this isotope 17 proton, 17 electron and 18 neutron It is present 75% in natureģ7Cl : atomic weight of this isotope is 36.96. It is place in periodic table at 17 th column ( group) and 3 rd row ( period) It is place in halogen familyĦ) Colour : chlorine gas show yellow green colourħ) Odour It odour like choking. The name chlorine is originated from Greek word ‘chlorous’ Meaning of this word is ‘ greenish yellow’Ītomic number of chlorine is 17 In chlorine 17 proton and 17 electron is presentĪtomic weight of chlorine is 35.25 In chlorine atom 17 proton and 18 neutron is present hence chlorine show atomic weight is 35.25 It Is discovered by Carl Wilhelm scheele in 1774 And it is in between fluorine and bromine. Its properties are lies between fluorine and bromine. Atomic Mass, Number, Physical, Chemical properties, Electronic configuration, Valency, Chemical reaction, UsesĬhlorine is an non metallic gas. How to Create a Periodic Table Using HTML and CSSĬhlorine – Learn all details regarding Chlorine in Periodic Table i.e.
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