P-block elements
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P-block elements
I was just wondering how you would know what p-block element gains its electrons and what p-block element loses its electrons. Does it just depend on the element?
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Re: P-block elements
In the p-block, the metals form cations by losing their valence electrons and the nonmetals form anions by gaining enough valence electrons to fill their p-orbital.
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Re: P-block elements
Normally, the ones with less than 4 valence electrons loses its electrons while the ones over 4 valence electrons want to gain electrons. Both want to fulfill the octet rule in the least possible manner of gaining or losing electrons possible if that makes sense.
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Re: P-block elements
The following is taken from an extremely useful chemistry article that explains how p-block elements differ from the others we learn about. I hope this helps:
The difference in inner core of elements greatly influences their physical properties (such as atomic and ionic radii, ionisation enthalpy, etc.) as well as chemical properties. Consequently, a lot of variation in properties of elements in a group of p-block is observed. The maximum oxidation state shown by a p-block element is equal to the total number of valence electrons (i.e., the sum of the s- and p-electrons). Clearly, the number of possible oxidation states increases towards the right of the periodic table. In addition to this so called group oxidation state, p-block elements may show other oxidation states which normally, but not necessarily, differ from the total number of valence electrons by unit of two.
The difference in inner core of elements greatly influences their physical properties (such as atomic and ionic radii, ionisation enthalpy, etc.) as well as chemical properties. Consequently, a lot of variation in properties of elements in a group of p-block is observed. The maximum oxidation state shown by a p-block element is equal to the total number of valence electrons (i.e., the sum of the s- and p-electrons). Clearly, the number of possible oxidation states increases towards the right of the periodic table. In addition to this so called group oxidation state, p-block elements may show other oxidation states which normally, but not necessarily, differ from the total number of valence electrons by unit of two.
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