Which of the following elements has lowest electronegativity?

N a

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M g

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A l

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S i

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Solution

The correct option is A $N a$
$N a$ has lowest electronegativity.
In a period, on moving from left to right, electronegativity increases.
$N a, M g, A l$ and $S i$ belongs to third period.
In a group, on moving from top to bottom, electronegativity decreases.

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(c) Na > Al > Mg > Cl > Si
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Q. Which of the following elements mentioned has the lowest electronegativity?

Q. The first ionisation energies of six

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Which of the following elements have similar properties?

F, N a, M g, A l, S i, P, S, C l, A r

K

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Which of the following elements has lowest electronegativity?

The correct option is A NaNa has lowest electronegativity.In a period, on moving from left to right, electronegativity increases. Na,Mg,Al and Si belongs to third period.In a group, on moving from top to bottom, electronegativity decreases.

The correct option is A $N a$
$N a$ has lowest electronegativity.
In a period, on moving from left to right, electronegativity increases.
$N a, M g, A l$ and $S i$ belongs to third period.
In a group, on moving from top to bottom, electronegativity decreases.