Metallic and non-metallic elements, Chemistry

 

The most important classification of elements is that of non-metallic versus metallic. Metallic elements form solids that are good conductors of electricity, and where bonding is not strongly directional and have structures with many near neighbors. Non-metallic elements form molecules or covalent solids, which are usually poor conductors of electricity and where bonding is markedly directional in character. This distinction on the basis of physical properties. All elements of the d, s and f blocks are metallic (except hydrogen), non-metallic ones being confined to hydrogen and to the upper right-hand part of the p block.

 

Posted Date: 7/21/2012 8:45:00 AM | Location : United States






Your posts are moderated
Related Questions
Liquid propellants - Monopropellants and Bipropellants These contain an oxidizer like liquid oxygen, nitrogen tetroxide (N 2 O 2 ) or nitric acid and a fuel for example alcohol

why wood doesnot sublimine ?

CALCULATE THE MOMENTUM OF APARTICLEWHICH HAS WAVELENGTH OF 2A

Pre And Primary Processing -Some Basic Concepts In the earlier three units, we learnt about the principles and methods of food processing. Certain issues related to production,

Define Composition of individual phase in phase diagram–three phase? A binary system with three phases has only one degree of freedom and cannot be represented by an area on a

Q. Isomerism in Coordination Compounds? You have already learnt about isomerism in your earlier studies. The phenomenon of isomerism is not restricted to organic compounds only

#actinide contraction

Antibiotics: A chemical substance generated by or derived from living cells that is able of inhibiting the life procedures or even destroying micro-organism is known as Antibio

Phenols : Physical properties: 1.Low molecular weight phenols are normally liquids or low melting solids 2.Due to H- bonding ,most low molecular weight phenols are water soluble 3.

The value of the energy for the first excited state of hydrogen atom will be: (1) - 13.6 ev                        (2)- 3.40 eV        (3) -1.51eV