2. Atoms & Elements

According to Dalton's postulates, which statement is correct?

Which of the following names is commonly used to refer to J.J. Thomson's atomic model?

Why is atomic number considered a better basis than atomic mass for organizing the elements in the periodic table?

Which of the following is NOT a part of Dalton's atomic theory?

Which of the following is a reason why Dalton's atomic theory was later found to be incorrect?

Which of the following best describes a 2p atomic orbital?

Which statement is true when a crystal is formed from many metal atoms?

Which statement best explains how Democritus was both right and wrong about atoms being indivisible?

In which year did John Dalton propose his atomic theory?

Which best describes a scientific theory?

Who was the first to propose the existence of atoms?

Which of the following is true of a scientific theory?

Which of the following best describes alchemy in the context of atomic theory?

Which statement is NOT part of Dalton's atomic theory?

Which of the following best explains why amorphous solids do not have long-range order in the arrangement of their particles?