elements of group dynamics

Trends in Chemical Reactivity of Group 13 Elements - Unlike boron, the other members of the group are metallic and the electropositive character increases as we go down the group. All these elements in their compounds exhibit the oxidation state of ..

Unlike boron, the other members of the group are metallic and the electropositive character increases as we go down the group. All these elements in their compounds exhibit the oxidation state of + 3 and +1. The important chemical properties of the boron family are dis..

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..

The elements helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) are grouped together in Group 18 of the Periodic Table. All of these are gaseous under ordinary conditions of temperature and pressure. The last number of the group, rado..

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 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 ..

1. Oxygen is the first member of the group VIA and sulphur is the second member of the group VIA. 2. Other member of this group are selenium, tellurium and poloniu..

Summary - Hydrogen is the most abundant element in the universe. Hydrogen is also the lightest element in the universe. It has a vapour density of 1, which is 14.4 times lighter than air. Hydrogen is absent in the free state in the earth's atmosphere. But in the combined state i..

Summary - Chlorine belongs to group VII A. Members of this group are called halogens which means 'salt producers'. Chlorine is a greenish yellow gas. Chlorine has seven electrons in its outer most shell and so has a valency of 1. Like other halogens chlorine is a strong oxidisin..

N P As Pb Bi Atomic radius (pm) 70 110 120 140 150 Ionic radius (pm) 171 (N 3 - ) 212 (P 3 - ) 222 (As 3 - ) 76 (Sb 3 + ) Ionisation energy IE 1 (k.J mo1 -1 ) 1402 1012 947 834 703 IE 2 2856 1903 1798 1594 1610 ..