Question

c,o,ne,na,si
Which elements should be in the same group ,which elements shoul be in same period​ state reason for your selection.

Answer 1

Answer:

(i) The elements having same number of shells should be in the same period. Elements 6C, 8O, 10Ne have the two energy shells. So, they belong to the same period i.e. period 2. (ii) The elements which have same number of valence electrons lie in the same group