Carbon (atomic number 6) and silicon (atomic number 14) are elements in the same group of the periodic table. Give the electronic arrangements of the carbon and silicon atoms, and state the group in which these elements, occur.

Explanation

(i) The atomic number of carbon is 6 so its electronic configuration is 2,4. Thus, carbon atom has 4 valence electrons in it.
(ii) The atomic number of silicon is 14, so its electron arrangement will be 2,8,4 So even a silicon atom has 4 valence electrons in it.
(iii) The group number of an element in the periodic table having 4 valence electrons is `4+10=4`. Since both carbon and silicon have 4 valence electrons each, they occur in group 14 of the perodic table.