write electronic configuration of the following element and predict their valencies fluorine 9 aluminium 13 argon 18
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Elements At no. Electronic configuration valency
K L M N
fluorine 9 2 7 1
Aluminium 13 2 8 3 3
Argon 18 2 8 8 0
K L M N
fluorine 9 2 7 1
Aluminium 13 2 8 3 3
Argon 18 2 8 8 0
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