![]() ![]() Sea water has a very large amount of chlorine (present in NaCl in seawater).Chlorine is the 21 st most abundant element present in the earth’s crust.Chlorine is the 3 rd most abundant element present in the ocean.The chlorine element is given its name from the Greek word “khloros” which means “greenish-yellow” (which is the appearance of the chlorine gas).Here are a few interesting facts about chlorine element. H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La* Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac** Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og * Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No LrĬlick on above elements in the periodic table to see their information. Appearance of chlorine Pale yellow-green gas Atomic number of chlorine 17 Symbol of chlorine Cl Atomic mass of chlorine 35.45 u Protons, Neutrons & Electrons in chlorine Protons: 17, Neutrons: 18, Electrons: 17 State of chlorine (at STP) Gas Group number of chlorine in periodic table 17 Period number of chlorine in periodic table 3 Block of chlorine in periodic table p-block Category of chlorine Nonmetals (halogens) Bohr model or Electrons per shell or Electrons arrangement in chlorine 2, 8, 7 Electron configuration of chlorine 3s 2 3p 5 Orbital diagram of chlorine Valence electrons in chlorine 7 Electronegativity of chlorine (on pauling scale) 3.16 Atomic radius of chlorine (van der Waals radius) 175 picometers Density of chlorine 3.214 g/L 1st ionization energy of chlorine 12.968 eV Main isotope of chlorine 35Cl and 37Cl Melting point of chlorine (Cl 2) 171.6 K or -101.5 ☌ or -105.7 ☏ Boiling point of chlorine (Cl 2) 239.11 K or -34.04 ☌ or -29.27 ☏ Crystal structure of chlorine Orthorhombic Discovery of chlorine By Carl Wilhelm Scheele in 1774Īlso see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table). The important data related to chlorine element is given in the table below. ![]() Uses of Chlorine Chlorine Element (Information Table). ![]() There is a lot more information related to chlorine which is mentioned in the Information Table given below. Chlorine is in the p-block and it is classified as a halogen group element on the periodic table. Chlorine element (Cl) is in group 17 and period 3 of a periodic table. ![]()
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