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Using the part of the Periodic Table giv...

Using the part of the Periodic Table given below, answer the questions that follow:

(i) Na has physical and chemical properties similar to which element (s) and why? (ii) Write the electronic configuration of N and P. Which one of these will be more electronegative and why? (iii) State a chemical property common to fluorine and chlorine.

Text Solution

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(i) Lithium and potassium, due to same number of valence electrons.
(ii) `N to 2, 5`
`P to 2,8,5`
N is more electronegative element as electronegativity decreases on moving down the group.
(iii) Both fluorine and chlorine form their hydracids on reacting with hydrogen.
`H_2 + F_2 to 2HF`
`H_2 + Cl_2 to 2HCl`
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