What new idea about light did Einstein use to explain the photoelectric effect? Why does the photoelectric effect exhibit a threshold frequency? Why does it not exhibit a time lag? (grouped in similar pairs)
1.1 Chem: The Central Science Whatis Chemistry-Textbook definition & Webster’s New WorldDictionary ● Matter -physical material that makes up the universe: it has mass and occupies space (you cansee it, touch, smell,taste) ● Scientific Method -the process of observation, hypothesis, and experimentation used to expand a body of knowledge ● Slide shows diagram of how chemistryrelates to many fields (check Pearson). ● Analytical Chem -deals with qualitative (constituents) & quantitative (amounts) analysis of substances. ● Organic Chem -study of carbon-containing compounds and their derivatives. ● Inorganic Chem -study of all other substances not included in organic chem.(like other elements in the periodi
