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Grade: 11

                        

Which main group elements have adifferent number of outermost electron than its group number of Mendeleevs periodic table ?

4 years ago

Answers : (1)

Umakant biswal
5359 Points
							
@ shashank 
helium will turn out to be the correct answer . 
beacuse helium have only 2 electrons and it belongs to group 8 in the case of mandaleevs periodic table . 
|HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..
4 years ago
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