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ICSE Class 6 Answered

WHAT IS ELEMENT ? GIVE  EXAMPLE  AND  LIST  THE  PROPERTIESN  OF AN ELEMENT.
Asked by rajinder.rs758 | 03 Oct, 2018, 09:29: PM
answered-by-expert Expert Answer
Elements :
  • Elements are pure substances which are the basic unit of matter and cannot be broken down into two or more simpler substances by any means.

Occurrence of elements

  • Elements are obtained both naturally and by artificial means.
  • There are about 118 elements.
  • Naturally occurring elements can be found in the Earth’s crust, atmosphere and also in living organisms.
  • There exist elements having single atoms (K, Mg, Na, S, Ar), double atoms (O2, H2, N2) and more than two atoms (O3, P4)

Elements are classified as follows-

  • Metallic elements
  • Non-metallic elements
  • Metalloids
  • Noble gases

An atom of any element is denoted by a ‘symbol’. A symbol is a short form or abbreviated name of the element.

 

 

Answered by Ramandeep | 04 Oct, 2018, 12:02: PM

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