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Dynamic Microphone
Several types of microphones depend for their action upon the voltage induced in a conductor moving in a magnetic field. The dynamic or moving-coil micro- phone contains a small coil attached to a diaphragm, so arranged that when the diaphragm vibrates, the coil moves back and forth in a..
Representative or Main Group Elements
These consist of all 's' and 'p' block elements excluding the noble gases (group 18 elements). The chemical properties of the representative elements are determined by the number of valence electrons in their atoms. The number of valence electrons belonging t..
Electronic configuration of group 17 elements
Element Symbol Atomic No. Electronic Configuration Abundance In Earth’s Crust (in ppm) Fluorine F 9 [He] 2s 2 2p 5 800 Chlorine Cl 9 [Ne] 3s 2 3p 5 800 Bromine Br 9 [Ar] 3d 10 4s 2 4p 5 480 ..
Group 17 (VIIA) Cl Element
Some Basic Features of Chlorine - Symbol Cl Formula cl2 Atomic number 17 Electronic configuration 2, 8, 7 Valency -1 Relative Atomic Mass 35.5 Relative Molecular Mass 71 Vapor Density 35.5 Isotopes 35 37 Cl , Cl17 ..
Physical Characteristics Group 16 Elements
Physical Characteristics Group 16 Elements - The important physical properties of the elements of group 16 are recorded as shown below: Some physical properties of the elements of group 16 Property Oxygen Sulphur Selenium Tellurium Poloniu..
Some important halides of group 16 elements
Element Fluorides Chlorides Bromides Iodides O OF 2 Cl 2 O, ClO, Cl 2 O 7 Br 2 O I 2 O 5 S S 2 F 2 , SF 4 , SF 6 S 2 Cl 2 , SCl 2 S 2 Br 2 - Se Se 2 F 2 , SeF 4 , SeF 6 Se 2 Cl 4 , SeCl 4 SeBr 2 , SeBr 4 - Te TeF 4 , TeF 5 TeCl 4 , TeCl 4 ..
General Characteristics of Group 14 Elements
C Si Ge Sn Pb Atomic radius (pm) 77 118 122 140 146 Ionic radius (pm) - 40 53 69 78 M 4+ M 2+ - - 73 118 119 ..
Some physical constants of Group 14 elements
1 (k.J mol -1 ) 1086 756 761 708 715 IE 2 2352 1577 1537 1411 1450 IE 3 4620 3228 3300 2942 3081 IE 4 6220 4354 4409 3929 4082 Electro negativity 2.5 1.8 1.8 1.8 1.9 Melting point (K) 4373 1693 1218 505 60..
Grouping of Elements
In the long form of the periodic table, elements are grouped into four main blocks, purely on the basis of electronic configurations. Elements are grouped in blocks 's', 'p', 'd' and 'f' depending on the nature of orbital(s) into which the last electron..
Grouping of Elements
In the long form of the periodic table, elements are grouped into four main blocks, purely on the basis of electronic configurations. Elements are grouped in blocks 's', 'p', 'd' and 'f' depending on the nature of orbital(s) into which the last electron of th..
In the long form of the periodic table, elements are grouped into four main blocks, purely on the basis of electronic configurations. Elements are grouped in blocks 's', 'p', 'd' and 'f' depending on the nature of orbital(s) into which the last electron of th.. Result
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