Test+Questions


 * HISTORY OF THE ATOM**
 * TEST QUESTIONS**

Your team needs to write four test questions related to a given scientist. The questions need to be intelligent, challenging, and accurate. You may compare your scientist's model of the atom and accomplishments to other scientists'. Test questions will be graded on content as well as use of visuals.

Dalton 1) Dalton stated that all atoms of the same element are ___.__ IDENTICAL

__2)__ ______________occur when atoms are rearranged. __a) Chemical Mutation__ b) Chemical Reactions c) Physical Reactions __d) Explosions__

__3) According to Dalton, different elements have different types of__ ________. a) atoms b) protons c) electrons d) neutrons

4) What year did Dalton discover his atomic theory?
 * 1803**

Dalton Team 5 1) What did Dalton state as one of his theorys of the ratios of atoms in a compound? A) The numbers of the ratio need to be decimals. B) The numbers of the ratio need to be 2-digit numbers. D) The numbers need to have a single digit number then a 2-digit number.
 * C) The numbers need to be whole numbers and small. **

2) What Law did Dalton make dealing with weights of elements that always combine with one another in ratios of small whole numbers? A) Law of ratios B) Law of whole numbers D) Law of multiple ratio numbers
 * C) Law of multiple proportions **

3) We still use Dalton's assumptions but with minor revisions? B) false
 * A) true **

4) How many theory's did Dalton make? A) 5 B) 4 C) 6 D) 7

__**Bohr**__ 1. Bohr believed electrons were a) organized b) random c)together
 * d. At very specific distances from the nucleus**

2. How many shells were in his diagram of an atom? a) 5 b) 3 c) 2

3. He stated that if an atom loses or gains energy, the electron will a) lose as well b) gain or lose as well c) just gain
 * d) make transitions from one energy level to a different energy level**

4. Electrons gain energy by a) absoring neutrons b) absoring electrons c) absorbing protons d) none

5) How did Bohr correct Rutherford's model?
 * Electrons move in paths as specific energy levels (or rings).**

6. Both Bohr and Rutherford agreed that the nucleus was surrounded by a) a small amount of space b) protons
 * c) a large amount of space**

7. Bohrs model of the atom fixed its attention on the b) proton c) neutron
 * a) electron**

8) Because of Bohr, what knowledge did we gain? B) nothing C) Different elements have different types of atoms
 * A) We know that electrons gain or lose energy while they move between energy levels**

__**J.J Thompson (Team 2)**__ 1. Thomson proposed that there were smaller particles of rays inside an atom. What did he call these particles? a. Microatoms b. Protons d. Photons
 * c. Corpuscules**

2. Before proposing a new theory, Thomson was investigating a long-standing puzzle known as _. (Fill in the blank)

3. What did Thomson create in order to show that cathode rays were electrically charged?
 * Cathode ray tube**

4. What was Thompson's theory called?
 * Plum Pudding Model**

**JJ Thompson[Group 6]**

1. What did Thompson come upon in his conclusion for his Cathode Ray Experiment? A. Rays are streams of the same size compared to the atom C. Rays are streams of larger particles compated to the atom D. Came upon no results
 * B. Rays are streams of smaller particles compared to the atom **

2. Who's model did Thompson add too [if he did add to it], and what did this person mainly focus on? A. Dalton, Thompson added electrons larger than atoms, Dalton mainly focused of electrons C. Dalton, Thompson added nothing, Dalton focused on nucleus D. Dalton, Thompson added nothing, Dalton focused on electrons
 * B. Dalton, Thompson added electrons are smaller than atoms, Dalton mainly focused on the atom **

3. What did Thompson's conclusion disprove? B. The fact that atoms are in motion C. The fact that everything is made of atoms D. The fact that atoms can't be made
 * A. The fact that atoms are indivisable **

4. What did Thompson call his model and what other experiment develop? A. Called the french toast model and developed the pudding model B. Called the french toast model and developed the plum pudding model of the atom C. Called the raisin bread model and developed the pudding model
 * D. Called the raisin bread model and developed the plum pudding model of the atom **

Rutherford 1. What did Rutherford discover? b. Protons c. Electrons d. Neutrons
 * a. Nucleus**

2. What did Rutherford discovered about protons? c. he proofed they were real
 * a. they're concentrated in one spot**
 * b. they're postive charged**

3. What did Rutherford do, to correct Thompson's atom model a. He added more detail to it b. Thompson's model no longer worked, he made a new atom model c. He did nothing to it

4. What is the defination of a nucleus c. A place for protons and electrons__
 * a. The center of the atom**
 * b. Dense, charged mass**

Other Scientists