Mass of total positive charge present in an atom is 55110times to thatofmass of electron . Write the electronic configuration of the element.

Mass of total positive charge present in an atom is 55110times to that

1.	Mass of total positive charge present in an atom is 55110times to thatofmass of electron . Write the electronic configuration of the element.
Answer» 2,8 ,9 ,2 2 ,8 , 18 , 1 2, 8 , 18, 2 2 ,8 , 82 Solution :We know that mass of a proton is1837 times that of an ELECTRON. `:.`ATOMIC number of element`=(55110)/(1837)=30` `:.`Electronic configuration of the elementis2 , 8 , 18 , 2