Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Atomic Theory
Test Description: Review of Dalton's theory, law of conservation of mass, and cathode ray tube experiment.
Instructions: Answer all questions to get your test result.
1) According to Dalton's atomic theory, atoms
A
c. of each element are identical in size, mass, and other properties.
B
b. can be divided.
C
d. of different elements cannot combine.
D
a. are destroyed in chemical reactions.
2) Dalton's atomic theory agrees with modern atomic theory except for the statement that
A
all atoms of the same element have the same mass.
B
all matter is made up of small particles.
C
atoms of the same element are chemically alike.
D
atoms are not divided in chemical reactions.
3) Which of the following statements is true according to modern atomic theory?
A
c. Atoms can never combine with any other atoms.
B
a. Atoms of the same element may have different masses.
C
d. Cathode rays are composed of protons.
D
b. Atoms may be divided in ordinary chemical reactions.
4) Which statement below accurately describes the contributions of Democritus?
A
created the modern periodic table
B
discovered the existence of electrons
C
proposed the modern Atomic Theory
D
ancient Greek philosopher who proposed that matter was not continuous
5) Which of the following is NOT part of Dalton's Atomic Theory?
A
Each element is composed of tiny indestructible particles called atoms.
B
Most of the atom's mass and all of its positive charge is contained in a small core called the nucleus.
C
Atoms combine in simple, whole-number ratios to form compounds.
D
All atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements.
6) If 4.0 g of element A combine with 10. g of element B, then 12 g of element A combine with ____ g of element B.
A
c. 24
B
b. 12
C
a. 10.
D
d. 30.
7) In a glass tube attached to a voltage source, electrical current passes from the negative electrode, called the ____, to the other electrode.
A
d. millikan
B
c. electron
C
a. cathode
D
b. anode
8) When an electrical current passed through a glass tube, it caused the surface of the tube directly across from the cathode to glow. Scientists concluded that
A
b. the particles of the beam were negatively charged.
B
d. atoms were indivisible.
C
a. a magnetic field was produced.
D
c. there was gas in the tube.
9) The rays produced in a cathode tube are
A
d. striking the cathode.
B
b. deflected away from a negative plate.
C
a. unaffected by a magnetic field.
D
c. found to carry a positive charge.
10) Experiments with cathode rays led to the discovery of the
A
a. proton.
B
b. nucleus. .
C
d. electron
D
c. neutron.
11) After measuring the ratio of the charge of a cathode-ray particle to its mass, Millikan concluded that the particles
A
a. had no mass.
B
b. had a very small mass.
C
c. had a very large mass.
D
d. carried a positive charge.
12) Because any element used in the cathode produced electrons, scientists concluded that
A
a. all atoms contained electrons.
B
c. atoms were indivisible.
C
b. only metals contained electrons.
D
d. atoms carried a negative charge.
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?