Answers

2014-11-19T00:04:38+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
An atom is the most basic building block of matter of a substance.   Any physical substance is made up of atoms that repeat themselves through out the substance.  It is the  smallest indivisible part of the substance, that contributes to physical and chemical properties of a substance.
 
    Any substance consists of atoms arranged in some structure and some free space between them.

    It consists of subatomic particles called electrons, protons and neutrons.  The size of an atom is pico meters and is invisible to the eyes.

   The chemical elements that we hear like hydrogen, oxygen are composed of their respective atoms.  A good example that we can give is,   a school is like matter of  a substance.  Then rooms in the building are like atoms.  The smallest building block of the building.   Further, in a beehive there are many rooms for the bees, each room is like an atom.

0
2014-11-19T17:27:59+05:30
Atom means anu which the elements made of..eg; o is oxxygen atom,,, 2 `o combines to form oxygen molecule
0