Out of the following transition elements, the maximum number of oxidation states are shown by
(a) Sc(Z=21)
(b) Cr (Z=24)
(c) Mn (Z=25)
(d) Fe (Z=26)

In the following transition metals, the maximum number of oxidation states are exhibited by (a)chromium (Z=24) (b)manganese (Z=25) (c)Iron(Z=26) (d)titanium (Z=22)

The maximum oxidation state shown by V(Z=23),Cr(Z=24),Co(Z=27),Sc(Z=21) , are respectively

The maximum oxidation state shown by V(Z=23),Cr(Z=24),Co(Z=27),Sc(Z=21) , are respectively

Why does the transition element scandium (Z=21) not exhibit variable oxidation states ?

Name the element showing maximum number of oxidation states among the first series of transition metals from Sc(Z = 21) to Zn (Z = 30).

Why do transition elements show variable oxidation states ? Name the element showing maximum number of oxidation states among the first series of transition metals from Sc (Z = 21) to Zn (Z= 30).

(a) Why do transition elements show variable oxidation states? (i) Name the element showing maximum number of oxidation states among the first series of transition metals from Sc (Z = 21) to Zn (Z = 30). (ii) Name the element which shows only + 3 oxidation state. (b) What is lanthanoid contraction? Name an important alloy which contains some of the lanthanoid metals.