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Chemistry Ch.4

QuestionAnswer
Democritus Called natures basic particle an atom, meaning "indivisible"
Aristotle was much more influential, and his opinion that matter could be infinitely divided prevailed for almost 2000 years. earth, water, air, fire.
What are the important modifications of the modern atomic theory? 1) Atoms are divisible 2) An element can have atoms with different masses.
Why can Dalton's ideas be called a theory? Dalton changed Democritus' ideas into a scientific theory that could be tested. As a result, some aspects of Daltons theory have changed.
What is the modern atomic theory that Dalton proposed? Proposed that the elements where composed of atoms and only whole numbers of atoms can combine and form compounds.
How come Aristotle and Democritus ideas not considered theories? Because there was not scientific testing neither view could be supported by experimental evidence.
Atom Is defined as the smallest particle of an element that retains the chemical properties of that element.
What is the "anatomy" of an atom? nucleus + electron cloud.
Created by: slinenkugel13