CBSE BOARD X, asked by Kushagra333, 1 year ago

How to find the valency of that metal whose atomic no is after 18

Answers

Answered by aryamishra7654
1
if the atomic no. of the metal is after 18 then
1. maximum no. of electrons in an orbit = 2n²

2. outermost orbit contain maximum 8 electrons.

3. second outermost orbit contain maximum 18 electrons.

for example....

K L M N O P
Kr36 2 8 18. 8

Xe54 2 8 18 18 8

Rn86 2 8 18 32 18 8

Hope u understand.... : )

Kushagra333: But these are the electronic configuration only of the inert gases please give some examples of metals as well as non metals
aryamishra7654: okkkk....
aryamishra7654: I will give u more examples
Answered by mankirajput999
0

00 isthe valency because in k shell -2

                                                l-8

                                                 m  -8        

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