Ordinis

Does anybody have any suggestions on how to synthesize this molecule? And please! If you have any objections against the structure of the molecule don't mind telling me! You see I'm quite a newbie at chemistry so I'm really grateful if I get feedback! Thanks! (btw, please don't mind the failed molecular structure in the corner)

Why is the covalent triple bond in diatomic nitrogen so strong? Why is it that this covalent bond is so strong when covalent bonds usually are week?

If we have a molecule where an atom has one bond with another atom, does the electronegativity change for those atoms then? If we were to bond one of the atoms once more with another atom, (if we presume it's possible) would the electronegativity then be changed for that atom since it's bonded with another atom already? Or is the electronegativity constant?

Hey! I wasn't really sure where to post this so please excuse me if it was wrong of me to post it here. Anyways, I was wondering if there exists some kind of computer programme where you can build molecules AND where they tell you if the molecule can actually exist. Thanks!