Class 9 Science


Electronic Configuration

From Aluminium to Calcium

Electronic configuration of Aluminium

Atomic number of aluminium = 13.

Therefore number of electrons = 13.

Thus, electronic configuration of aluminium is electronic configuration of aluminium

diagram of electronic configuration of aluminium

Number of orbit in aluminium = 3

Electronic configuration of Silicon

Atomic number of silicon = 14

Therefore number of electrons = 14

Thus, electronic configuration of silicon is electronic configuration of silicon

diagram of electronic configuration of silicon

Number of orbit in silicon = 3

Electronic configuration of Phosphorous (P)

Atomic number of phosphorous = 15

Therefore number of electrons = 15

Thus, electronic configuration of phosphorous is electronic configuration of phosphorus

diagram of electronic configuration of phosphorus

Number of orbit in phosphorous = 3

Electronic configuration of Sulphur (S)

Atomic number of sulphur = 16

Therefore number of electrons = 15

Thus, electronic configuration of sulphur is electronic configuration of sulphur

diagram of electronic configuration of sulphur

Number of orbit in sulphur = 3

Electronic configuration of Chlorine (Cl)

Atomic number of chlorine = 17

Therefore number of electrons = 17

Thus, electronic configuration of chlorine is electronic configuration of chlorine

diagram of electronic configuration of chlorine

Number of orbit in chlorine = 3

Electronic configuration of Argon (Ar)

Atomic number of argon = 18

Therefore number of electrons = 18

Thus, electronic configuration of argon is electronic configuration of argon

diagram of electronic configruation of argon

Number of orbit in argon = 3

Electronic configuration of Potassium (K)

Atomic number of potassium = 19

Therefore number of electrons = 19

Since, maximum number of electrons in outermost orbit will not be more than 8, thus the 19th electron of potassium atom will reside in 4th orbit.

Thus, electronic configuration of potassium is electronic configuration of potassium

diagram of electronic configuration of potassium

Number of orbit in potassium = 4

Electronic configuration of Calcium (Ca)

Atomic number of calcium = 20

Therefore number of electrons = 20

Thus, electronic configuration of calcium is electronic configuration of calcium

diagram of electronic configuration of calcium

Number of orbit in calcium = 4