Question

Electron configuration diagram for 9th class

Answer 1

Answer:

The maximum number of electrons can be obtained by 2n2; where ‘n’is the orbit number. Thus after knowing the maximum number of electrons for a particular shell, the arrangement of electrons in an atom can be identified. It is called Bohr Bury Schemes.

Explanation:

Electronic configuration of Hydrogen

Atomic number of hydrogen = 1

Therefore number of electrons = 1

Maximum number of electrons in 1st orbit = 2

Since, hydrogen has only one electron, therefore, it will reside in 1st orbit.

Thus electronic configuration of hydrogen electronic configuration of hydrogen lewis dot structure of hydrogen

Number of orbit present in hydrogen = 1

Answer 2

Answer:

for example electronic configuration of sodium (Na) shell - k=2 ,L=8, M=1

Explanation:

because atomic number of sodium is 11 so in the last shell only one electron is there. First one nucleus then k shell then l shell, then m shell. The number of electrons in each atom is arranged by 2n square formula