Closely related to Hund's Rule is the Aufbau Principle, which states that electrons will fill the lower energy levels before moving to higher energy orbitals. Remember that each orbital has two electrons and the number of orbitals at an energy level depends on the first two quantum numbers.
Definition of venture. 1  1 obsolete : destiny, fortune, chance. 2  2a : an undertaking involving chance, risk, or danger; especially : a speculative business enterpriseb : a venturesome act. 3  3 : something (as money or property) at stake in a speculative venture.
A joint venture is a business enterprise undertaken by two or more persons or organizations to share the expense and (hopefully) profit of a particular business project. A joint venture is not a business organization in the sense of a proprietorship, partnership, or corporation.