Non-Metals Metalloids Inert Gases Metals Radon Calcium Bismuth Nitrogen Argon Xenon Oxygen Helium Carbon Hydrogen Antimony Arsenic Silver Germanium Platinum Gold
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Answer:
Answer
(a) (i) Metals are elements that are malleable , ductile and conduct electricity.
Example : Aluminium and zinc
(ii) Non-metals are elements that are neither malleable nor ductile and they do not conduct electricity.
but most of the non-metals are brittle
Examples : Phosphorus and hydrogen
(iii) Metalloids are the elements that shows properties of both metals and non-metals.
Examples : Germanium and silicon.
(b) Metals - Mercury, Sodium
Non-metals - Diamond, Sulphur, Iodine, Carbon, Boron
Metalloids - Silicon, Germanium
Answer:
In chemistry, a nonmetal (or non-metal) is a chemical element that is either a gas, liquid or brittle solid in its most stable form and which usually gains or shares electrons in chemical reactions. Typical nonmetals have a dull appearance, relatively low melting points, boiling points, and densities, and are poor conductors of heat and electricity. Chemically, nonmetals tend to have higher values of ionization energy, electron affinity, and electronegativity, and their oxides are acidic. Most or some nonmetals share a range of other properties; a few have properties that are anomalous.