Structure of Atom
Types of Isotopes
Distribution of electrons in various orbits : ( Bohr Bury Scheme )
Valence Electrons and Valency
- If atoms have 1 to 4 valence electrons then VALENCY = Number of valence electron
- If atoms have 5 to 8 valence electrons then VALENCY = 8 – Number of valence electron
- But these above rule is not applicable to atoms which show variable valency
Tracer technique of radioactive isotopes
Various fields of tracer techniques
- In the field of chemical science.
- In the field of medical science.
- In the field of agriculture.
- In the industrial fields.
- And in other scientific fields.
In this technique carbon isotope is used to determine the age of rocks, minerals, fossils, dead animals and dead plants.
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