Fill in the Blanks Covalent BondingOnline version Ensure you have the Chemthink tutorial link open - https://contrib.pbslearningmedia.org/WGBH/arct15/SimBucket/Simulations/chemthink-covalentbonding/content/index.html by Tara S 1 Covalent bonding forms when atoms electrons . When two atoms get close enough , the nucleus attracts the other atom's . Before bonding , the atom's electrons spend most of their time the nuclei of each atom . Once bonded , the electrons spend most of their time two nuclei . Atoms must be able to hold onto their , while another atom's electrons . Covalent bonds form between two . When atoms move closer , the potential energy . At a certain point , the potential energy if you try and move the atoms closer because the in each nucleus are each other . The ideal distance between the atoms is known as bond . Lower in energy = most . Naming simple covalent compounds - the ending of the name of the second element is changed to - . Prefixes added to the beginning of some elements names tell us how atoms of that element are present in the molecule . Name the following - dinitrogen monoxide - nitrogen dioxide - dinitrogen trioxide - nitrogen monoxid e