Write the electronic configuration of the following elements: (i) Cl 17 35 (ii) C 6 12 (iii) K 19 39 (iv) P 15 31

The maximum number of electrons that could be present in a shell is given by the rule 2 n 2 , where n is the shell number. That is the first shell K shell can accommodate a maximum of 2 electrons, second shell L can accommodate a maximum of 8 electrons, and the M shell can accommodate a maximum of 18 electrons. The atomic number of chlorine is 17, therefore the electronic configuration of Cl 17 35 = 2, 8, 7 The atomic number of carbon is 6, therefore the electronic configuration of C 6 12 = 2, 4 The atomic number of potassium is 19, therefore the electronic configuration of K 19 39 = 2, 8, 9 The atomic number of phosphorous is 15, therefore the electronic configuration of P 15 31 = 2, 8, 5

Write the electronic configuration of the following elements: (i) Cl 17 35 (ii) C 6 12 (iii) K 19 39 (iv) P 15 31

The maximum number of electrons that could be present in a shell is given by the rule 2 n 2 , where n is the shell number. That is the first shell K shell can accommodate a maximum of 2 electrons, second shell L can accommodate a maximum of 8 electrons, and the M shell can accommodate a maximum of 18 electrons. The atomic number of chlorine is 17, therefore the electronic configuration of Cl 17 35 = 2, 8, 7 The atomic number of carbon is 6, therefore the electronic configuration of C 6 12 = 2, 4 The atomic number of potassium is 19, therefore the electronic configuration of K 19 39 = 2, 8, 9 The atomic number of phosphorous is 15, therefore the electronic configuration of P 15 31 = 2, 8, 5