metals non metals and metalloids questions

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Introduction - Earth is an abundant source of material. Man has intensively studied the properties of these materials extensively and found new methods of using them. The air we breathe, the water we drink, stones and rocks, almost everything that is around us, are all useful to man for some purpos..

Characteristics of Metals - One can easily differentiate between metals and non-metals based on their placement on the Periodic Table of the Elements. The metals are elements (with the exception of hydrogen) that are found to the left of a group of elements r..

Introduction - There are 109 elements known at present. 92 elements occur in nature, while the rest are man-made. All materials on the Earth are made of these naturally occurring elements. These are classified into metals, non-metals, and metalloids. The occurrence and..

The tendency of an element to lose electrons and form positive ions (cations) is called electropositive or metallic character. For e.g., alkali metals are the most electropositive elements. "The tendency of an element to accept electrons to form an anion is called its non-m..

. Bronze was widely used for many years and this epoch of prehistory became Bronze Age. They indicate a gradual change in the life style of mankind. About 7000 years ago it was discovered that certain minerals would yield metals when placed in the fire. Many of these colored minerals were..

The tendency of an element to lose electrons and form positive ions (cations) is called electropositive or metallic character. For e.g., alkali metals are the most electropositive element..