The correct order of decreasing metallic character is:

C l > S i > A l > M g > N a

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N a > M g > A l > S i > C l

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N a > A l > M g > C l > S i

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A l > N a > S i > C l > M g

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Solution

The correct option is B $N a > M g > A l > S i > C l$
The metallic character decreases along the period towards right. Thus the correct order of metallic character is $N a > M g > A l > S i > C l$

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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
(b) Na >Mg >Al >Si > Cl
(c) Na > Al > Mg > Cl > Si
(d) Al > Na> Si > Ca> Mg

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

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

$N a^{+} . M g^{2 +}, A l^{3 +}$ and $S i^{4 +}$ are isoelectronic. The order of their ionic size is

N a^{+}

M g^{2 +}

A l^{3 +}

and

S i^{4 +}

are isoelectronic, their ionic size will follow the order:

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The correct order of decreasing metallic character is:

The correct option is B Na>Mg>Al>Si>ClThe metallic character decreases along the period towards right. Thus the correct order of metallic character is Na>Mg>Al>Si>Cl

The correct option is B $N a > M g > A l > S i > C l$
The metallic character decreases along the period towards right. Thus the correct order of metallic character is $N a > M g > A l > S i > C l$