group 15 (va) element - carbon

Daniel Rutherford, a Scottish Physician, discovered nitrogen in 1772. But it was Lavoisier, who proved that nitrogen is an element and that it was not a supporter of combustion and respiration. He called it 'azote' meaning 'no life'. The name 'Nitrogen' was given to it by Jean Antoi..

Summary - Nitrogen is the first member of group VA. Nitrogen has 5 electrons in its valence shell. It has a valency of 3 with respect to hydrogen and a valency upto 5 with respect to oxygen. It is a non-metal and its oxides are acidic in nature. Nitrogen is an important componen..

Carbon is an extremely important element and was known from the earliest times in the form of charcoal, soot, etc. Although the amount of carbon in the earth's crust is only eleventh by mass, it ranks as high as oxygen and hydrogen, in importance. In nature, it o..

..

Carbon (C), silicon (Si), germanium (Ge), tin (Sn) and lead (Pb) constitute the group 14 of the periodic table. This group is known as carbon fami..

Summary - Carbon is the eleventh most abundant element in the earth's crust by mass. Carbon is the first member of group IVA and a typical non-metal. Carbon exhibits allotropy and shows maximum catenation. Carbon occurs both in free state ..

The important physical constants of group 15 elements are given 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 ..

Carbon forms the largest number of compounds, next only to hydrogen. It ranks seventeenth in the order of abundance in the earth's crust. Carbon occurs in the free native state as well as in the combined state. Carbon and its compounds are widely distributed in nature...

An element is defined as a pure substance as it is made up of only one kind of atoms having the same atomic number. The smallest particle of an element is the atom, which has all the properties of that element. It cannot be further reduced to simpler substances by ord..