Question

1. The atomic number ol an element is 17.
(1) State the name of this element and its electronic structure.
(2) State the position of this element in the modern periodic table.
OR​

Answer 1

Explanation:

1) The name of this element is Chlorine, and it's electronic structure is 2, 8, 7.

2) It is situated in the group number 17 and on 2nd period, in the periodic table.

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Answer 2

(1) The name of this element is chlorine and its electronic structure contains 7 dots around Cl.

(2) The position of this element in the modern periodic table is period 3 and group 17.

Explanation:

According to the periodic table, an element with atomic number 17 is chlorine and its electronic distribution is 2, 8, 7. To attain stability it requires to gain one electron.

When we draw its electronic structure then there will be seven dots present around the symbol of chlorine, that is, Cl. As it is located in group 17 so, it is a non-metal which lies in period 3.

Name of this element is chlorine and it is represented by the symbol Cl.

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