Question

what is isosters ?????​

Answer 1

Answer:

Isosteres are substances with similar molecular and electronic characteristics. They may not be structurally related, but they often have similar physical properties. They are atoms, chemical substances or substituents that possess nearly equal or similar molecular shape and volume, approximately the same distribution of electrons and which exhibit similar chemical properties.  

Benzene and pyridine are classical examples of isosteres.

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Explanation:

Answer 2

WHAT IS ISOSTERS ?????

THEY ARE THE MOLECULES WHICH HAVE THE SAME NUMBER OF ATOMS & ELECTRONS .

EXAMPLE  >>>

$CO_{2}\\  \\ATOMS \\=1+2\\=3\\\\ELECTRONS \\\\6+8 *2\\= 22e^{-}$