Unit - 4.2 Geometric Representation of Atomic Structure — CHEMISTRY STD 8 — Question
ICSE BoardEnglish MediumSTD 8CHEMISTRYUnit - 4.2 Geometric Representation of Atomic Structure3 Marks
Question
Define isotopes giving examples. State three properties of isotopes.
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Answer
Isotopes: Elements having the same atomic number but the different mass numbers are isotopes of each other. Both forms of the element have the same number of protons. Number of neutrons is different in isotopes. Example: ${ }_7 N^{14}$ and ${ }_7 N^{15}$ State three Properties of Isotopes are- 1. Isotopes have similar chemical properties, but different, physical properties like mass, weight etc. 2. Isotopes occupy the same position in the periodic table. 3. Atomic mass vary due to change in number of neutrons.
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