Question

17 m element has atomic number 19 .where do u expect these eliment in periodic table ?why?
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Answer 1

Answer:

The element will be in Group 1 (IA) and 4th period. It is present in the alkali metals group.

Explanation:

This is so because the electronic configuration of the 'm' element is 2,8,8,1 which shows 4 shells and 1 electron in valence shell.

As we know that the number of shells represent the period number and the valence represent the group number.

So from this information we can get its position in periodic table.

Hope this helped you....

Answer 2

Answer:

 element is Potassium (K). Its position is a 1st group and 4th period. It is a metal because it is the s-block element.

Explanation:

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