P, S, Al, Na (increasing metallic character)
Question
P, S, Al, Na (increasing metallic character)
Solution
The metallic character of elements increases from right to left and from top to bottom in the periodic table.
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Start with Phosphorus (P): Phosphorus is a non-metal located in Group 15 and Period 3 of the periodic table.
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Next is Sulfur (S): Sulfur is also a non-metal, located in Group 16 and Period 3. It is to the right of Phosphorus, so it has a lower metallic character.
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Then comes Aluminum (Al): Aluminum is a metal located in Group 13 and Period 3. It is to the left of both Phosphorus and Sulfur, so it has a higher metallic character.
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Finally, Sodium (Na): Sodium is a metal located in Group 1 and Period 3. It is to the left of all the other elements listed, so it has the highest metallic character.
So, the order of increasing metallic character is: S, P, Al, Na.
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