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Difference Between Atom and Ion • Categorized under Chemistry,Science | Difference Between Atom and Ion Atom vs Ion An Atom is the smallest and an indivisible unit of matter. Ions are Atoms where the protons and the electrons are not equal. Ions would therefore be either positive or negatively charged. An Atom is composed of Protons, Neutrons and electrons. The protons and neutrons form the nucleus of the Atom while electrons surround
the nucleus. An Atom remains electrically neutral till the number of electrons and protons are equal. An Atom with unequal number of electrons and protons is electrically charged and called an Ion. If the number of electrons is more than protons it is called an Anion and if the protons are more than electrons it is called Cation.
An Atom is the smallest particle of an element which can take part in a chemical reaction whereas the Ions are not capable of taking part in chemical reactions. Ions can, however, exist independently in a solution, whereas, Atoms may or may not be able to exist independently.
The outermost shells of Atoms may or may not satisfy the duplet or octet rule of chemistry while the Ions will have duplet or octet in their outermost shells. Atoms are unstable as they do not have electrostatic force of attraction with the exception being noble gasses. They lose or share electron to gain stability. Ions on the other hand are stable as they have the electrostatic force of attraction between them. Atoms combine to form a molecule. The Ions on the other hand form an electrovalent bond. Summary: 1. An Atom is the smallest and an indivisible unit of matter. Ions are Atoms with an electrical charge. 2. In an Atom the number of electrons and protons will be equal while in an ion they would be unequal. 3. An Atom can take part in a chemical reaction while an ion cannot. 4. An ion can exist independently while an Atom cannot. 5. Atoms are generally unstable while Ions are stable. 6. Atoms combine to form a molecule while Ions form an electrovalent bond. 9
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Difference Between Ion and Isotope Difference Between Elements and Atoms Difference Between Cation and Anion Difference Between Atom and Molecule Difference Between Nuclear reaction and Chemical reaction Difference Between Ionic and Covalent bond Differences Between Mass Number And Atomic Mass
Cite N Amit. "Difference Between Atom and Ion." DifferenceBetween.net. March 26, 2012 < http://www.differencebetween.net/science/difference-between-atom-and-ion/ >.
10 Comments 1. Ann January 17, 2011 • 7:46 pm thank you very much for this article. When I’m reading my book on earth science at home I find it VERY confusing and this article breaks it down enough for me to understand the difference between them and its explained in a simple matter that I might be able to remember as the book does not! Thank you! Reply 2. Oscar McLean May 31, 2012 • 10:42 pm Ions are essential in some chemical reactions, for e.g. to create sodium chloride you need a sodium ion and chlorine ion. Reply 3. Tyse Lawhorn October 3, 2012 • 9:36 am this website is alsome thanks for making it !!!!!!!!!! Reply 4. Anchal May 3, 2015 • 8:19 am Thanks to the makers of this website for clearing my doubts Reply 5. Shubhanshu Ranjan (SR) February 7, 2016 • 8:04 am My all the trial of finding this diff. was in vain but when I check this article ,it cleared all my doubt. Thanks Reply 6. Maitreyee Birajdar May 2, 2016 • 12:49 pm thanks for clearing my doubts the part i mostly liked was the summary which made a quick recap…… Reply 7. Mayank December 18, 2016 • 1:28 am Can be made better. Not clearly understood. Reply 8. Ajith August 29, 2017 • 8:54 am My son in 8th grade has never ending doubts about differences. has made a difference! Thank you so much! Reply 9. Kinza August 30, 2017 • 9:34 pm This website was out standing ,marvellous and very helpful for me which helps me to complete home work. THANK YOU! . Reply 10. Ben. October 11, 2017 • 4:29 pm Thanks so much Reply
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