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According to the Dalton’s atomic theory, which smallest particle can live independently?
1. Molecule
2. Atom
3. Cation
4. Anion

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Correct Answer - Option 2 : Atom

The Correct Answer is Atom.

  • Atom, smallest unit into which matter can be divided without the release of electrically charged particles. 
  • It also is the smallest unit of matter that has the characteristic properties of a chemical element. 
  • As such, the atom is the basic building block of chemistry. 

  • A Molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge.
  • Positively charged ions are called Cations. A cation has more protons than electrons, consequently giving it a net positive charge. 
  • Negatively charged ions are called Anions. An anion has more electrons than protons, consequently giving it a net negative charge.

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