elements of group dynamics

The important physical constants of group 13 elements arc given in table and their physical characteristics are discussed below: B Al Ga In Tl Atomic radius (pm) 85 143 135 167 170 Ionic radius (pm) M 3+ 27 53.5 62.0 80.0 88.5 Density (gcm -..

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 Iodine I 17 [Kr] 4d ..

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 505 600 Boil..

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Their physical properties show a regular and smooth gradation. Some of the physical constants of the noble gases are listed bel..

N P As Sb Bi Atomic radius (pm) 70 110 120 140 150 Ionic radius (pm) 171 (N 3- ) 212 (P 3 - ) 222(As 3 - ) 76(Sb 3 + ) Ionoization energy IE 1 (KJ mol - 1 ) 1402 1012 947 834 703 ..

Atomic and ionic radii The halogens have the smallest atomic radii in their respective periods due to maximum effective nuclear charge. Among themselves, the atomic and ionic radii increase with increase in atomic number. This is due to increase in the number of electron shell..

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 Properties - The values of some important physical constants of the carbon fami1y are recorded in the below tab..