Which electronic configuration corresponds to an element of group-IIIA of the periodic table:
Correct answer: A. 1s2, 2s2, 2p6, 3s2, 3p1
- A. 1s2, 2s2, 2p6, 3s2, 3p1
- B. 1s2, 2s2, 2p6, 3s2, 3p6, 4s2
- C. 1s2, 2s2, 2p6
- D. 1s2, 2s2, 2p6, 3s2, 3p3
Explanation
As group 3A elements has 3 electrons in valence shell so its outer shell electronic configuration will be ns²np¹
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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