Description : Why is carbon tetravalent?
Last Answer : Carbon has four electrons in its outermost orbit, so its valency is four. The electronic configuration of carbon is 1s 2 , 2s 2 , 2p 2 It has 2 paired and 2 unpaired electrons. On ... 2s level is promoted to 2p level thus there will be four unpaired electrons. Hence carbon is tetravalent.