Quick Answer. An atom is stable because of a balanced nucleus that does not contain excess energy. If the forces between the protons and the neutrons in the nucleus are unbalanced, then the atom is unstable. Stable atoms retain their form indefinitely, while unstable atoms undergo radioactive decay. Most naturally occurring atoms are stable and do not decay.
Graduation requirements are listed in the Ohlone College Catalog. Occupational programs are available to students interested in preparing for employment in the fields listed. Most of the occupationally oriented programs lead to either the AA or AS degree or to a Certificate of Achievement, the latter usually taking one year to complete.
OSHA authorizes trainers to conduct occupational safety and health training through the OSHA Outreach Training Program. Through this program, individuals who complete a one-week OSHA trainer course receive a certificate of completion and an authorized outreach trainer card.