Question

The electronic configuration of an element is 2 8 4 state its : group and period in the modern periodic table . Name and write its one phyisical property

Answer 1

${\bold{\red{\mathfrak{Hola}}}}$

Period: 3

Group: 14

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Reason:

Period : It is the number of shells.

Group: It is the valence electron(if more than 2 then add 10).

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The element is Silicon (Si)

• It forms covalent compound

Answer 2

Group : 14

because there are 4 electrons in the valence shell of this elements.

Period : 3

because there are 3 shells in this element

Name : Silicon

Physical property : It's boiling point is 2600 degree celcius.

It's melting point is 1417 degree celcius.