Q. 25.0( 1 Vote )

Name the elements

Answer :

(i) The element which has a three shell and three electrons in the outermost shell is Aluminium(Al)

The atomic number of Al is 13 which can be written as electronic configuration 2, 8, 3.

(ii) The second shell, l shell can have a maximum of 8 electrons. The third shell will have 4 electrons.

The required compound is Silicon(Si)-14

The electronic configuration of silicon is 2, 8, 4

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