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How can we determine the valency of transition elements
Asked by saradamahapatra9999 | 21 Mar, 2020, 09:34: AM
answered-by-expert Expert Answer
Valency can be determined by electronic configuration.
Electronic cponfiguration of transition elements is ns2 (n-1)d.  Electrons present in ns2 are valence electrons. 
Most common valency is 2. Transition metals have 2 valence electrons It is very general statement about valency. But they have variable valency so all valencies are not predictible. It depends upon their chemical reaction.
Answered by Ravi | 23 Mar, 2020, 08:24: PM

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