Chapter 2 Atoms and the Periodic Table (test bank)
Student:
1.
The scientist who determined the magnitude of the electric charge on the electron was
A. John Dalton
B. Robert Millikan
C. J. J. Thomson
D. Henry Moseley
E. J. Burdge
2.
When J. J. Thomson discovered the electron, what physical property of the electron did he measure?
A. its charge, e
B. its chargetomass ratio, e/m
C. its temperature, T
D. its mass, m
E. its atomic number, Z
3.
Which field of study made a big contribution toward understanding the composition of the atom?
A. Electricity
B. Radiation
C. Solution chemistry
D. Electrochemistry
E. Quantum mechanics
, Full file at http://emailtestbank.com/ Test-Bank-for-Chemistry-Atoms-First-2nd-Edition-by-Burdge
4.
Which of the following is a type of radioactive radiation that has no charge and is unaffected by external
electric or magnetic fields?
A. rays
B. rays
C. rays
D. rays
E. rays
5.
Which of the following is a type of radioactive radiation that consists of positively charged particles and is
deflected away from the positively charged plate?
A. rays
B. rays
C. rays
D. rays
E. rays
6.
Which of the following is a type of radioactive radiation that consists of electrons and is deflected away from
the negatively charged plate?
A. rays
B. rays
C. rays
D. rays
E. rays
, Full file at http://emailtestbank.com/ Test-Bank-for-Chemistry-Atoms-First-2nd-Edition-by-Burdge
7.
Which of these scientists developed the nuclear model of the atom?
A. John Dalton
B. Robert Millikan
C. J. J. Thomson
D. Henry Moseley
E. Ernest Rutherford
8.
Rutherford's experiment with alpha particle scattering by gold foil established that
A. protons are not evenly distributed throughout an atom.
B. electrons have a negative charge.
C. electrons have a positive charge.
D. atoms are made of protons, neutrons, and electrons.
E. protons are 1840 times heavier than electrons.
9.
J. J. Thomson studied cathode ray particles (electrons) and was able to measure the mass/charge ratio. His
results showed that
A. the mass/charge ratio varied as the cathode material was changed.
B. the charge was always a wholenumber multiple of some minimum charge.
C. matter included particles much smaller than the atom.
D. atoms contained dense areas of positive charge.
E. atoms are largely empty space.
, Full file at http://emailtestbank.com/ Test-Bank-for-Chemistry-Atoms-First-2nd-Edition-by-Burdge
10.
Who is credited with measuring the mass/charge ratio of the electron?
A. Dalton
B. Chadwick
C. Thomson
D. Millikan
E. Rutherford
11.
Who is credited with first measuring the charge of the electron?
A. Dalton
B. GayLussac
C. Thomson
D. Millikan
E. Rutherford
12.
Millikan's oildrop experiment
A. established the charge on an electron.
B. showed that all oil drops carried the same charge.
C. provided support for the nuclear model of the atom.
D. suggested that some oil drops carried fractional numbers of electrons.
E. suggested the presence of a neutral particle in the atom.