Q15 of 21 Page 102

What is the main difference between isotopes of the same element?

DEFINITION: Two atoms that contain the same number of protons but different numbers of neutrons are isotopes of the same element. For example Deuterium and Tritium are isotopes of Hydrogen. Carbon-12, Carbon-13 and Carbon-14 are isotopes of carbon.



DIFFERENCE: 1. Isotopes of the same element have different structure. Like Graphite, Diamond and Buckminster fullerene are isotopes of carbon but the difference is in their structure.


Fullerene is the network like structure similar to design in football. The figure below depicts the structure of fullerene.



In Diamond carbon is arranged in tetrahedral manner. The figure below depicts the structure of diamond.



In graphite carbon is layered structure so easy to break. The figure below depicts the structure of graphite.




2. The isotopes of the same element have different physical property but same chemical property.


More from this chapter

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13

Write the atomic number and the symbol of an element which has mass number 32 and the number of neutrons 16 in the nucleus.

 14

Cl- has completely filled K&L shells. Explain.

 16

For the following statements, write T for True and F for False.

a. J.J. Thomson proposed that the nucleus of an atom contains only nucleons.


b. A neutron is formed by an electron and a proton combining together. Therefore, it is neutral.


c. The mass of an electron is 1/2000 times that of proton.

 17

Fill in the missing information in the following table.