Octet Rule

Science / Chemistry / Octet Rule: A guideline for building Lewis structures that states that atoms tend to gain, lose, or share valence electrons with other atoms in a molecule until they hold or share eight valence electrons. The octet rule almost always holds for carbon, nitrogen, oxygen, and fluorine; it is regularly violated for other elements.

Other Words for Rule

Rule Noun Synonyms: direct, guide, manage, control, lead, head (up), preside (over), superintend, oversee, supervise, regulate, govern, run
Rule Verb Synonyms: regulation, order, law, ordinance, ruling, decree, ukase, statute, principle, direction, guide, guideline, precept
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Rule 144

Business / Finance / Rule 144: Restricts solicitation of buyers to complete the sell order of an insider (unless the firm is already a buyer); signified by a flashing 'E' on Quotron. MORE

Rule 14-D

Business / Finance / Rule 14-D: Often used in risk arbitrage. Regulations and restrictions covering public tender offers and related disclosure requirements. MORE

Rule 13-D

Business / Finance / Rule 13-D: Often used in risk arbitrage. Requirement under Section 13-d of the Securities Act of 1934 that a form must be filed with the SEC within ten business days of acquiring direct or beneficial ownership o MORE

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