1) By using Bohr Bury rules. Write the election arrangement of element having atomic number 18.
Answers
Explanation:
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A)
<>The maximum no. of electrons present in a shell is given by the formula 2n²
( n is shell number).
<>The maximum number of electrons that can be accommodated outermost orbit is 8.
(iii) Electrons are not accommodated in a given shell, unless the inner shells are filled.
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B )
The element X with atomic no: 17 is Chlorine.
No : of protons = 17
No : of electrons = 17
Electronic Configuration = 2 , 8 , 7
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The element X with atomic no: 16 is Sulphur.
No : of protons = 16
No : of electrons = 16
Electronic Configuration = 2 , 8 , 6