ICSE Class 6 Answered
What is valency of Nickel
Asked by ashutea8 | 02 Dec, 2018, 03:53: PM
Expert Answer
Nickel (Ni) has the atomic number: 28
The electronic configuration of Ni : [Ar] 3d8 4s2
Hence Nickel will 2 electrons from the s shell hence will show valency 2
But nickel is a transition element, hence it shows variable valencies like 2, 3 and 5 when it forms a complex.
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