Chapter 4: Structure of the Atom

Q&A -Ask Doubts and Get Answers

Q
Structure of Atom

Question:

Isotopes of an element have:

(a) the same physical properties

(b) different chemical properties

(c) different number of neutrons

(d) different atomic numbers

Answer:

The isotopes are the variant of the particular chemical element which has the same atomic number but a different mass number. For example, hydrogen has three isotopes, protium _{1}^{1}	extrm{H}  deuterium _{1}^{2}	extrm{D} and tritium _{1}^{3}	extrm{T} . These isotopes have the same atomic number but different mass numbers. The number of protons is equal to the number of electrons present in the atom. So, the isotopes must contain an equal number of electrons. This means that all isotopes have similar chemical properties.

Hence, the correct answer is (a) the same physical properties.


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