Question

The electronic configuration of transition elements in +3 oxidation state is (Ar)3 a

Answer 1

The atomic number of argon is 18.the actual element is in its 3 oxidation state which means it has donated 3 electrons. thus, by adding, 18 4 3=25

electron configuration of argon

According to Bohr's Model it's 2,8,8

According to Quantum mechanical model it is

1s²2s²2p63s²3p6

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