Each atom has three major subatomic constituents namely, electron, proton, and neutron.
The smallest particle, indivisible in nature that constitutes the matter is known as an atom. Water, Sugar, Carbon Dioxide, hydrogen peroxide, etc. No fixed shape but generally assumed to be spherical.Įxists in linear, trigonal, pyramidal shapes, etc.Ĭoulomb’s force of attraction binds the subatomic particles.Ĭovalent bond exists between two or more atoms. Sum of masses of each individual atom forming the molecule. Nucleons (having protons, neutrons) and electrons.Īpproximately equals to sum of masses of protons, neutrons and electrons consisting that atom. The smallest indivisible unit of matter is atom.Ī combination of multiple atoms which can be further divided is molecule. But atoms are such small entities that it is impossible to visualize them through human vision or any microscopic device.
From a small piece of chalk to a large blackboard, from a single wall to a complete home, from a small ant to a giant human, and from a giant human to this whole earth, everything is composed of atoms.
Everything in this universe is composed of atoms. Whenever the names atoms and molecules are taken, there occurs confusion that how the two are different and what similarities exist between the two.īasically, something which requires a definite space and has some specific mass is defined as matter, and the matter is composed of atoms and molecules.
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