Write the electronic configuration of elements (i) A(at no. 12) (ii) B(at no. 29). Predict the period, group number and block to which they belong.

Write the electronic configuration of elements (i) A(at no. 12) (ii) B

1.	Write the electronic configuration of elements (i) A(at no. 12) (ii) B(at no. 29). Predict the period, group number and block to which they belong.
Answer» (ELECTRONIC configuration)3rd PERIOD 2nd groupp-blockii)2,8, 18, 1 (electronic configuration)4th period11th groupd- lock