Question

the atomic no. of cl is 17 .write down the formula of a compound it forms with other element ​

Answer 1

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Question From class 10 Chapter PERIODIC CLASSIFICATION OF ELEMENTS

'The atomic number of Cl is 17. On the basis of this information, answer the questions that follow : <br> (a) Write the electronic configuration of Cl. <br> (b) Find its valency. <br> (c) To which group does it belong ? <br> (d) Identify the type of ion it will form. <br> (e) Write down the formula of the compound it forms with other elements.

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Text Solution

Solution :

(a) Electronic configuration of Cl (Z = 17) = 2, 8, 7. (b) Valency of Cl = 8 - 7 = 1 <br> (c) Group to which Cl belongs= 17 (d) Type of ion formed by Cl = Anion

. <br> (e) Formula of compound with other elements (M)

<br> Here x is the valency of the element.