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Chlorine is a chemical element; it has symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature.
The definitive visualisation of all 118 elements is the periodic table of the elements, ... 17 Cl Chlorine [ab] 17 3 p-block 35.45: 0.0032: 171.6: 239.11: 0.479: 3.16 ...
The halogens fluorine, chlorine, bromine, and iodine are nonmetals; the chemical properties of astatine and tennessine, two heaviest group 17 members, have not been conclusively investigated. The halogens show trends in chemical bond energy moving from top to bottom of the periodic table column with fluorine deviating slightly.
This is a list of chemical elements and their atomic properties, ordered by atomic number (Z).. Since valence electrons are not clearly defined for the d-block and f-block elements, there not being a clear point at which further ionisation becomes unprofitable, a purely formal definition as number of electrons in the outermost shell has been used.
Periodic table showing the cosmogenic origin of each element in the Big Bang, or in large or small stars. ... 17 Cl Chlorine [ab] 17 3 p-block 35.45: 0.0032: 171.6 ...
The most common values of atomicity for the first 30 elements in the periodic table are as follows: ... 17 Chlorine (Cl) 2 18 Argon (Ar) 1 19 Potassium (K) 1 20 ...
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[16] [17] All organic compounds, those essential for life, contain at least one atom of carbon; [16] [17] combined with hydrogen, oxygen, nitrogen, sulfur, and phosphorus, carbon is the basis of every important biological compound. [17] Nitrogen (N) is found mainly as mostly inert diatomic gas, N 2, which makes up 78% of the Earth's atmosphere ...