Please answer the following questions as a review of atomic history, using this link as a reference.
https://chem.libretexts.org/Courses/Oregon_Institute_of_Technology/OIT%3A_CHE_201_-_General_Chemistry_I_(Anthony_and_Clark)/Unit_2%3A_The_Structure_of_the_Atom/2.1%3A_A_History_of_Atomic_Theory
In ancient times, the Greeks philosophized and debated about the composition of matter.
postulated that a smallest, indivisible piece of matter must exist, while thought that matter, like numbers, could be sliced in half infinitum.
In the 1600's and 1700's, scientists started using methods of experimentation to gain knowledge.
Lavoisier first recognized and formulated the Law of stating that matter is neither created nor destroyed during chemical reactions.
Proust realized that a specific compound has a defining mass-ratio of its ingredient elements and stated the Law of .
developed the first atomic theory and the concept that elements are made of tiny atoms that can combine to form compounds. In his mind's eye, Dalton envisioned atoms to look like .
The first fundamental particle to be discovered was the .
J.J. Thomson recognized that all metals are able to emit negative particles through his work with .
After identifying different types of radiation, Ernest Rutherford used to conduct the Gold Foil Experiment.
During the experiment, the radiation particles were deflected by something small, dense, and positively charged in the center of the atoms of gold. This central part of the atom is now called the .
Continuing his investigations, Rutherford eventually discovered the fundamental particle that holds the positive charge in an atom, the .
Neils Bohr proposed a reason why each element is able to emit a specific set colors when its atoms are energized through his work with . Bohr realized that the must be organized in specific energy levels around the nucleus of the atom.
Being difficult to find because they have no charge, the were the last fundamental particles to be discovered.
Please organize the models of the atom, by creator, in chronological order with the first model at the top and the most recent model at the bottom of the list.
Neils Bohr
J.J. Thomson
John Dalton
Ernest Rutherford
Erwin Schroedinger
Please organize the models of the atom, by description, in chronological order with the first model at the top and the most recent model at the bottom of the list.
Empty sphere with a small, dense nucleus and electrons in the mostly-empty region around the nucleus
Solid, uniform sphere
Solid sphere with negative particles dispersed throughout a positively-charged material
Empty sphere with electrons organized in specific energy levels orbiting the nucleus
Please organize the models of the atom, by key discovery, in chronological order with the first model at the top and the most recent model at the bottom of the list.
Each element emits only some specific colors, never the full rainbow
Atoms combine in specific, whole-number ratios
Most alpha radiation can travel through a thin sheet of gold foil, but a few will bounce back at acute angles as if being deflected by something
Every metal has small, negative particles that can flow out of the atom when they are given enough energy
Please organize the models of the atom, by descriptive image, in chronological order with the first model at the top and the most recent model at the bottom of the list.
Cloud (or wave) model [picture of cotton candy]
Central nucleus
Raisin Bun Model
Organized electrons
Solid, uniform sphere
