Which element form an ion with charge +3:
Correct answer: B. Al
- A. Be
- B. Al
- C. C
- D. Si
Explanation
The Group IIIA of the Periodic Table comprises the elements boron, aluminium, gallium, indium and thallium. As Al belongs to 3A group, it has 3 electron in valence shell so its ion has +3 charge.
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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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