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Predicting Period, Group and Block of an Element
Knowing the electronic configuration, one can predict the period, which corresponds to the principal quantum number of the valence shell. The block of the element corresponds to the sub shell, which receives the last electron. The position of an element in the long form of the ..
The p-Block Elements Summary
Summary - Groups 13 to 18 of the Periodic table of elements constitute the p-block. An overview of these elements is presented here. In group 13, the characteristic group oxidation state of + 3 is known but the + 1 state gets progressively stabilized on going down the ..
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 Polonium Atomic radius (A o ) 0.73 1.09 1.16 1.35 - Ionic (M 2+ ) radius (A o ) 1.40 1.85 1...
Some physical properties or group 17 elements
Element Atomic Radius (Aº) Ionic Radius (Aº) Ionization Energy (kJ mol -1 ) Melting point (K) Boiling point (K) Electron affinity Electro negativity F 0.72 1.86 1681 53 85 332.6 4.0 Cl 0.99 1.81 1255 172 238 348.5 ..
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 ..
Physical Characteristics of Group 15 Elements
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..
Some physical constants 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 Ionisation energy ..
Comparative Study of n/p Ratio of Some Elements
It is interesting to note that n/p ratio of lighter elements is around one, whereas for heavier metals it is higher. Higher the n/p ratio, more unstable is the element. That is why metals like uranium and polonium are unstable and radioacti..
It is interesting to note that n/p ratio of lighter elements is around one, whereas for heavier metals it is higher. Higher the n/p ratio, more unstable is the element. That is why metals like uranium and polonium are unstable and radioacti..Group 17 Elements (The Halogen Family) - Introduction
Group 17 of the periodic table contains the elements fluorine, chlorine, bromine, iodine and astatine. These elements are collectively known as the HALOGENS. This name is derived from two Greek words Halo and Gens meaning 'salt producing'. Halogens are among the most r..
Group 15 Elements (Nitrogen Family) - Introduction
Group 15 of the Periodic table includes five elements namely nitrogen (N), phosphorus (P), arsenic (As) antimony (Sb) and bismuth (Bi). This group is regarded as nitrogen family. There is a transition from non-metallic to metallic character as we go down the group. Nitroge..
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