Periodic Table of Elements - Chlorine - Cl. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies. Chlorine has two stable isotopes chlorine-35 and chlorine-37with Chlorine-35 accounting for roughly 3 out of every 4 naturally occurring chlorine atoms. ), The Secret Science of Solving Crossword Puzzles, Racist Phrases to Remove From Your Mental Lexicon. You can calculate the charge of an atom by subtracting the number of electrons from the number of protons. Prairie Dogs: A Threatened Species or Public Health Nuisance? Copyright 1995 - 2020 Kenneth L Barbalace (. With two oppositely charged ions, there is an electrostatic attraction between them because opposite charges attract. A. A chlorine atom has a mass number of 35. Atomic Mass of Chlorine Comprehensive data on the chemical element Chlorine is provided on this page; including scores of properties, element names in many languages, most known nuclides of Chlorine. PLEASE, if you like an article we published simply link to it on our website do not republish it. Chlorine has the electron configuration [Ne]3s 2 3p 5, with the seven electrons in the third and outermost shell acting as its valence electrons. Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number is the same as the number of protons while the mass number is the sum of the protons and neutrons. Chlorine Compound of the Month: 8661 Taking Its Place on The Periodic Table . Introduces stoichiometry and explains the differences between molarity, molality and normality. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and seven in shell three. 17 is the total number of electrons. This database focuses on the most common chemical compounds used in the home and industry. The chemical element chlorine has 17 electrons, 17 protons and 18 neutrons. Pseudoscience: A Threat to Our Environment, Clean Air Act Contributing to Mercury Problem, The Heat facing Outdoor Wood Furnaces & Boilers, Increased Mercury Levels Attributed to Industrial Activities, Environmental Pollution of the Concord River, Plastics - From Recycling Bin to New Product, RoHS: Europe's Initiative to Control Technological Waste, The Chemistry of Polychlorinated Biphenyls, Molar Mass Calculations and Molecular Weight Calculator, Stoichiometry: Molarity, Molality and Normality, What You Do and Don't Know About Fluorine, USDOT HazMat Placards CD & training modules, J.K. Barbalace, inc., website development, Plagiarism, Copyright Infringement and Fair Use, Kitchen Renovation - Coming in 2010 or 2011, Prairie Dogs: Small mammal, big controversy. Chemical Properties of Chlorine. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Form a bond: Each electron has a charge of 1–, and each proton has a charge of 1+. A neutral chlorine atom, for example, contains 17 protons and 17 electrons. First Ionization Energy of Chlorine is 12.9676 eV. The element chlorine (Cl) has 17 protons and 17 electrons. Chlorine and oxygen are located at 7 and 6 groups respectively in the periodic table. The atomic number of chlorine is 17; thus, it has seventeen protons and seventeen electrons. When we write the configuration we'll put all 17 electrons in orbitals around the nucleus of the Chlorine … correct number of S and O atoms S as the central atom two lines (double bond) between S and one and only one of the three O atoms line (single bond) between S and the other two O atoms not doubled bonded to O four dots (electrons) associated with the O atom double bonded to S six dots (electrons) associated with the O atoms not double bonded to S On the right, the chloride ion has 18 electrons and has a 1− charge. EnvironmentalChemistry.com. The atomic number of chlorine is 17. Subtracting 17 from 35 equals 18, which is the number of neutrons in a chlorine atom. How to Write the Electron Configuration for Chlorine (Cl) In order to write the Chlorine electron configuration we first need to know the number of electrons for the Cl atom (there are 17 electrons). No. Sodium: 1 Chlorine: 7 3. Are there Realistic Dry-Cleaning Alternatives to Perc? Will 5G Impact Our Cell Phone Plans (or Our Health?! Chlorine-36 is also known naturally and is a radioactive isotope with a half life of about 30,000 years. Compact Fluorescent Lights (CFLs): Are They Worth the Switch? The atomic number of chlorine is 17. A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page. On the left, the chlorine atom has 17 electrons. Global Trends in Energy Technology Innovation, Hydrogen Fuel Cells: Energy of the Future, From Bhopal to Hazardous Waste Compliance, Love Canal NY: Grownups Don't Do Blue Goo, New Orleans, Hurricane Katrina & the Oil Industry, Environmental Justice and the NIMBY Principle. The chemical element chlorine has 17 electrons, 17 protons and 18 neutrons. More info. The … By adding one more electron we get a negatively charged Cl-ion with a net charge of -1. Total number of electrons of the valance shells of chlorine and oxygen atoms and charge of the anion. Valence is defined by the IUPAC as:. Like all halogens, it is thus one electron short of a full octet, and is hence a strong oxidising agent, reacting with many elements in order to complete its outer shell. The number of neutrons is calculated by subtracting the atomic number from the mass number. The gain or loss of electrons by an atom to form negative or positive ions has an enormous … The resulting combination is the compound sodium chloride. Name: Chlorine Symbol: Cl Atomic Number: 17 Atomic Mass: 35.4527 amu Melting Point:-100.98 °C (172.17 K, -149.764 °F) Boiling Point:-34.6 °C (238.55 K, -30.279997 °F) Number of Protons/Electrons: 17 Number of Neutrons: 18 Classification: Halogen Crystal Structure: Orthorhombic Density @ 293 K: 3.214 g/cm 3 Color: green Atomic Structure We are a great educational resource! 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