Search results
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
- Elektrony
Interaktywna tablica okresowa Web 2.0 z dynamicznym...
- Printable Periodic Table PDF
Printable Periodic Table PDF. Ptable's new, up-to-date...
- Lesson Plans
Periodic Table Lesson Plans. With help from the American...
- Elektrony
Element Chlorine (Cl), Group 17, Atomic Number 17, p-block, Mass 35.45. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
PERIODIC TABLE OF ELEMENTS Electronegativity 17 Atomic Number Cl Symbol Chlorine Name 3.16 Electronegativity (Pauling Scale) 1 H Hydrogen 2.2 1 1 2 He ... Neon 11 Na Sodium 0.93 3 12 Mg Magnesium 1.31 13 Al Aluminum 1.61 14 Si Silicon 1.9 15 P Phosphorus 2.19 16 S Sulfur 2.58 17 Cl Chlorine 3.16 18 Ar
For elements, you will learn how to represent the numbers of these subatomic particles in atomic notation as well as their electron configurations in both shell and subshell notation.
Chlorine is the 17th element in the periodic table and has a symbol of Cl and atomic number of 17. It has an atomic weight of 35.450 and a mass number of 35. Chlorine has seventeen protons and eighteen neutrons in its nucleus, and seventeen electrons in three shells.
In representing a diatomic molecule, we use the symbol of the element and include the subscript 2 to indicate that two atoms of that element are joined together. The elements that exist as diatomic molecules are hydrogen (H2), oxygen (O2), nitrogen (N2), fluorine (F2), chlorine (Cl2), bromine (Br2), and iodine (I2).
Chlorine is used extensively in the disinfection of water from the backyard swimming pool to public water supplies and wastewater effluents. Chlorine is cheap and effective providing enormous community benefit by enabling the supply of safe drinking water.
