The correct order of metalic characters for the given elements is-B - Na - Al - KA- Na - Al - K - BB- Al - K - N a - BC- Na - K - Al - BD- K - Na - Al - B

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Question

The correct order of metalic characters for the given elements is:
$B, N a, A l, K$

N a > A l > K > B

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A l > K > N a > B

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N a > K > A l > B

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K > N a > A l > B

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Solution

The correct option is D $K > N a > A l > B$
Metallic character decreases as we move from left to right across a period and increases down a group.

Down the group it follows the order: $K > N a$ and $A l > B$
Across the period, the order is: $N a > A l$
Hence, the overall order will be: $K > N a > A l > B$

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Question 17
Arrange the following elements in the order of their decreasing metallic character
Na, Si, Cl, Mg, Al

(a) Cl > Si >Al > Mg >Na
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Q. Considering the elements

B, A l, M g

and

K

, the correct order of their metallic character is:

The first ionistation enthalpies of Na, Mg, Al, and Si are in the order
(a) Na< Mg > Al < Si (b) Na> Mg > Al > Si
(c) Na< Mg< Al< Si (d) Na> Mg> Al < Si

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The correct order of metalic characters for the given elements is: B,Na,Al,K

The correct option is D K>Na>Al>BMetallic character decreases as we move from left to right across a period and increases down a group. Down the group it follows the order: K>Na and Al>B Across the period, the order is: Na>Al Hence, the overall order will be: K>Na>Al>B

The correct order of metalic characters for the given elements is:
$B, N a, A l, K$