National Institute of Open Schooling
General Characteristics of the p-Block Elements
The 20th installment in a series of 36 focuses on the characteristics of the p-block elements. Learners discuss, read about, and answer questions pertaining to the occurrence of these elements in nature, their electron configurations,...
Georgia State University
Georgia State University: Hyper Physics: Interference of Sound
Information about the interference of sound and its causes. Well-illustrated and good explanations of the concepts; part of a large hyper-textbook on various physics concepts.