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Atomic Theory
Studying the early atomic theory
Question | Answer |
---|---|
This man was known as the "Laughing Philosopher". | Democritus |
He stated that "Compounds are formed by a combination of two or more different kinds of atoms." | John Dalton |
Who developed the Plum Pudding Model? | J.J. Thomson |
Who discovered protons? | Eugen Goldstein |
Who discovered the neutron? | James Chadwick |
Subatomic particle with no charge. | Neutron |
Protons + neutrons = ? | Mass number |
What do we call an atom whose mass has changed? | Isotope |
What do we call and atom that has more electrons than protons? | Anion |
What model has no subatomic particles? | Indivisible sphere |
What experiment was used to find both protons and electrons? | Cathode Ray Tube |
What was the last subatomic particle to be discovered? | Neutron |
Which scientist did not perform any experiments? | Democritus |
Who stated that "A chemical reaction is a rearrangement of atoms"? | John Dalton |
Who discovered electrons? | J.J. Thomson |
Which scientist was a party animal? | Ernest Rutherford |
Who developed the Nuclear Atomic Model? | James Chadwick |
Subatomic particle with a negative charge. | Electron |
Number of protons = ? | Atomic number |
Weighted average of isotopes. | Average atomic mass |
These are "paws-itive". | Cations |
Which model includes neutrons? | Nuclear atomic model |
Which model shows electrons orbiting around the nucleus? | Planetary model |
Has mass but no charge. | Neutron |
Opposite charges will... | Attract |
Which experiment did Rutherford perform? | Gold Foil |
What model of the atom did J.J. Thomson propose? | Plum Pudding |
A-Negative-Ion | Anion |
Which experiment did Millikin perform? | Oil Drop |
More protons than electrons. | Cation |
Average atomic mass is a(n): | Weighted average |
When protons = electrons the atom is: | Neutral |
When the number of neutrons has changed the atom is called a(n): | Isotope |
When protons do not equal electrons the atom is called a(n): | Ion |
Which subatomic particle was discovered first? | Proton |
Where do protons and neutrons exist? | Nucleus |
Subatomic particle with a positive charge. | Proton |
Who discovered the mass and charge of an electron? | Robert Millikin |
Who performed the Gold Foil experiment? | Ernest Rutherford |
Which scientist used a Cathode Ray Tube: John Dalton, Ernest Rutherford, J.J. Thomson, or James Chadwick? | J.J. Thomson |
Which scientist is relatively unknown because he didn't get along well with others? | Eugen Goldstein |
Who performed the Oil Drop Experiment? | Robert Millikin |
Who discovered the nucleus? | Earnest Rutherford |
Who formulated hypotheses and theories and performed experiments to explain his theories? | John Dalton |
Who proposed the Indivisible Sphere model of the atom? | Democritus |
Who is the Father of the Atomic Theory? | John Dalton |
Who was the first to assign symbols to elements and compounds? | John Dalton |