(a). Define non-metals. Give five examples of non-metals. (b). Name a non-metal which conducts electricity. (c). Name a non-metal having lustre (shining s
Why is potassium the most reactive metal? Explain why metal oxides tend to be basic if the oxidation number of the metal is low and acidic if the oxidation number of the metal is high. Explain why metals conduct electricity. Why is iron more reactive than copper?
Is iron a metal, nonmetal or metalloid? What charge do nonmetals have? What elements are the poorest conductors of electricity? Which are more common: metals or nonmetals? Do nonmetals have high or low boiling points? Do nonmetals gain or lose electrons?
nonconductor- a material such as glass or porcelain with negligible electrical or thermal conductivity dielectric,insulator bushing- an insulating liner in an opening through which conductors pass material,stuff- the tangible substance that goes into the makeup of a physical object; "coal is a hard...
aA method and apparatus are described that use fluid flowing through a conduit as a conductor of electricity. The conduit is of nonconducting material or is lined with insulating material to provide a conduit of nonconductive material. Electric insulators are located at each end of the conducting...
Whereas \({\rm{A}}{{\rm{l}}_2}{{\rm{O}}_3}\) and \({\rm{ZnO}}\) are amphoteric in nature. The metal oxide which shows acidic as well as basic properties is known as amphoteric oxide. Example: Aluminium oxide reacts with hydrochloric acid to form aluminium chloride (salt) and...
a nonconductor of electricityWEIGEL DIPL-CHEM DR FRITZ
Q.13. Which of the given non-metal is a liquid? a) Hydrogen b) Bromine c) Chlorine d) Mercury Q.14. Metallic oxide are generally ___in nature. a) Acidic b) Basic c) Neutral d) Amphoteric 15. Galvanisation is a method of protecting iron from rusting by coating with a th...
Q2: Write one example of each of (i) a metal that is so soft that, it can be cut with a knife and a non-metal which is the hardest substance. (ii) metal and non-metal which exist as a liquid at room temperature. Answer: (i) Sodium, carbon (diamond). (ii) Mercury is a liqu...
The materials present around us are grouped widely into metals and non-metals. But can you say by their properties which material is metal and which is a non-metal? Is wood a metal? or Iron a non-metal? Let us learn this topic in detail. ...