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Test Bank ( Complete Download ) For Essentials of Radiographic Physics and Imaging | 3rd Edition | James Johnston | Terri L. Fauber
ISBN: 9780323566681

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Test Bank ( Complete Download ) For Essentials of Radiographic Physics and Imaging | 3rd Edition | Johnston
Test Bank ( Complete Download ) For Essentials of Radiographic Physics and Imaging | 3rd Edition | James Johnston | Terri L. Fauber
ISBN: 9780323566681

Description

Chapter 02: Structure of the Atom
Johnston/Fauber: Essentials of Radiographic Physics and Imaging, 3rd Edition
MULTIPLE CHOICE
1. The earliest atomic theory is generally associated with
a. Bohr
b. Leucippus
c. Democritus
d. Dalton
ANS: B
Although his theory was somewhat vague, Leucippus is most often the earliest person
associated with atomic theory.
2. The word atom is derived from the Greek word atomos, meaning
a. nuclear
b. small
c. indivisible
d. invisible
ANS: C
The Greek word atomos means “indivisible.”
3. In the early 1800s English chemist John Dalton theorized that
a. elements form compounds
b. atoms are unique to each element in size and mass
c. a chemical reaction results from atoms being rearranged
d. all of these
ANS: D
As a result of his experiments, John Dalton theorized that elements form compounds, atoms
are unique to each element in size and mass, and that a chemical reaction results from atoms
being rearranged.
4. Discovery of the electron is attributed to
a. Dalton
b. Bohr
c. Thomson
d. Rutherford
ANS: C
Joseph John “J.J.” Thomson determined that the electron was a negatively charged part of
the atom.
5. The “plum pudding model” is associated with
a. Bohr
b. Rutherford
c. Dalton
d. Thomson