I. TRUE or FALSE. Write TRUE if the statement is correct and FALSE if the statement is wrong. 1. Electrons act like they are spinning on an axis. 2. Principal energy levels are broken down into levels. 3. Louis de Broglie : It is impossible to know both the position and velocity of an electron simultaneously. 4. Each principal shell has n subshells. For n = 1, only a single subshell is possible (1s). 5. The principal quantum number is named first, followed by the letter a, b, d, or fas appropriate. 6. Valence electrons are the electrons in the outermost shell of an atom. 7. The forces of attraction that holds the particles together are called octet rule. 8. When the valence electrons of an atom are transferred to another atom, an covalent bond is formed. 9. A covalent bond formed by two metallic atoms results in a polar molecule. 10. The compounds which contain carbon forms with H, N, O and few other elements are usually called organic compounds.
