Atomic Number of Molybdenum. Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. The chemical symbol for Molybdenum is Mo. Atomic Mass of Molybdenum. Atomic mass of Molybdenum is 95.94 u.
Definition of elective. 1  1a : chosen or filled by popular election an elective officialb : of or relating to electionc : based on the right or principle of election the presidency is an elective office. 2  2a : permitting a choice : optional an elective course in schoolb : beneficial to the patient but not essential for survival elective surgery.
An elective surgery is a planned, non-emergency surgical procedure. It may be either medically required (e.g., cataract surgery), or optional (e.g., breast augmentation or implant) surgery. Elective surgeries may extend life or improve the quality of life physically and/or psychologically.