A) The element Nitrogen is listed under group 15 in the periodic table which means an atom of the element has 5 valence electrons. When Nitrogen gas is formed, there are two atoms and the molecule has 10 valence electrons. When you draw out the Lewis Dot Structure for N2, both atoms are missing 3 …show more content…
Ionic and covalent bonding are essential in the formation of many materials in our world today. Take hydrogen fluoride for example. It has polar covalent bonding and it is used in many processes such as the creation of drugs, in a solution for killing vegetation, as well as preservation of food in refrigeration. All these processes are vital in our everyday lives and cannot be done without the bonding of hydrogen fluoride to help with the process (CDC). I partly disagree with Zachary Steier’s answer for choice A (although I might just be misunderstanding the way his answer is written). Nitrogen gas does indeed share 3 pairs of electrons. As I stated in my own answer, there are 10 valence electrons in the molecule. You draw the two N’s and draw 5 valence electrons around each symbol, then move the electrons around to form the triple bonds. The octet rule will still be fulfilled (PubChem Compound Database).
Cited Sources:
1) Professor Erster, Lecture 1, Chapter