1.

Explain the significance of the +ve and -ve sign

Answer»

Solution :`+`ve and -ve sign is not related with charge.
It is the symbol of work FUNCTION and it represent the ORIENTATION of orbitals.
These signs correspond to + and - signs of the WAVES. It MAY be noted that crests of the ELECTRON wave are usually given + sign and the troughs are given .-. sign.


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