The electrons in a bond produce structure, and represents (20) energy. When matter is in energized electrons can be transferred these electrons represent (21). energy. When a single covalent bond is broken, two electrons are lost, the atom has undergone (22)_0 These elements are generally located on the left side of the Periodic Table, and are called (23) _elements because they lose electrons. When two electrons are gained a single covalent bond can form, and the atom has undergone (24) _r_ These elements are generally located on the right side of the Periodic Table, and are called (25) _elements because they gain electrons. Fill in the boxes in the concept map to aid your understanding of the atomic structure of atoms. Use the following terms: atomic number element neutrons electron shells isotopes protons electrons mass number valence shell ATOMS have subatomic particles a. d. combine located in located in determine 11 nucleus to get b. e. h. constant for each may differ in various f. Outer shell called 9/14/2021 11:32:08 AM 3