The element is a single substance that can not be described again into other substances by ordinary chemical reactions . Matter is composed of several constituent particles . Scientists classify a substance or material into two groups , namely : single substances and mixtures . Elements and compounds included in the class
a single substance . Well , what is meant by the elements ? The element is composed of metal and non- metal .
Pure substances have properties that differentiate with other substances . For example , the element hydrogen is only composed of only hydrogen atoms . Oxygen Elements are composed of atoms of oxygen alone . Properties of oxygen and hydrogen do not appear on the substance formed from both , eg water ( H2O ) . In nature there are 92 kinds of natural elements , while the rest are artificial elements . The total number of elements in the universe of approximately 106 types of elements . Elements are grouped into three ( 3 ) sections , namely :
there are 3 types of element types
1 . The element metal ( metal element discussion link )
In general, the metal element has properties shiny white , has a low
melting point , can conduct electricity , malleable and can conduct heat
or heat .
2 . Nonmetallic Elements ( link the discussion of non-metal elements )
In general, non- metallic elements have properties not shiny , poor conductors of electrical current , and can not be forged . In general, non-metals are poor conductors of heat , but there is a nonmetallic element that can conduct heat well is graphite .
3 . Semi- metallic Elements ( Metalloids ) ( link semi- metallic elements discussion )
Semi- metal element has properties between metals and non- metals . Some semi- metallic element that is useful in everyday life , such as:
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