In Modern Periodic Table, the elements in Group II-B are:
Correct answer: B. Zn, Cd, Hg
- A. Zn, Cd, Pb
- B. Zn, Cd, Hg
- C. Zn, Cd, Ba
- D. Zn, Cd, Bi
Explanation
Explanation:In modern periodic table, the elements in group ll-B are Zn, Cd, and Hg. This option is not correct. Lead (Pb) belongs to Group IV-B of the modern periodic table. This option is also incorrect because Barium (Ba) belongs to Group ll-A of the modern periodic table. This option is also incorrect because Bismuth (Bi) belongs to Group V-A of the modern periodic table.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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