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| કોલમ-$I$ | કોલમ-$II$ |
| $(a) \ Co^{3+}$ | $(i) \ \sqrt{8} \ B.M.$ |
| $(b) \ Cr^{3+}$ | $(ii) \ \sqrt{35} \ B.M.$ |
| $(c) \ Fe^{3+}$ | $(iii) \ \sqrt{3} \ B.M.$ |
| $(d) \ Ni^{2+}$ | $(iv) \ \sqrt{24} \ B.M.$ |
| $(v) \ \sqrt{15} \ B.M.$ |
| તત્વ | Sc | Ti | $V$ | Cr | Mn | Fe | Co | Ni | Cu | Zn |
|---|---|---|---|---|---|---|---|---|---|---|
| ધાત્વીય ત્રિજ્યા $M$ (pm) | $164$ | $147$ | $135$ | $129$ | $137$ | $126$ | $125$ | $125$ | $128$ | $137$ |
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