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Chemistry 107 Chapter 2
Terms in this set (35)
I'll kill of water contains hydrogen and oxygen in a 1 to 8 ratio by mass. This is a statement of...
The law of constant composition
Which of the following is not one of the postulates of Dalton's atomic theory?
Atoms are composed of protons neutrons and electrons
Consider the following selected postulates of Dalton's atomic theory: Each element is composed of extremely small particles called Atoms. Atoms are in indivisible. Atoms of a given element are identical. Atoms of different elements are different and have different properties. Which is no longer valid?
Two and three
Which pair of substances could be used to illustrate the law of multiple proportions?
Which statement below Correctly describes the responses of alpha, beta, and gamma radiation to an electric field?
Alpha and beta or deflect it in opposite directions, while gamma shows no response
Which one of the following is not true concerning cathode rays?
The characteristics of cathode rays depend on the material from which they are emitted
They charge on an electron was determined in the...
Millikan oil drop experiment
___________ Rays consist of fast moving electrons
The gold foil experiment performed in Rutherford's lab....
Led to the discovery of the atomic nucleus
In the Rutherford nuclear atom model
The heavy subatomic particles, protons and neutrons, reside in the nucleus
Cathode rays are
Cathode rays are deflected away from a negatively charged plate because
They are negatively charged particles
In the absence of magnetic or electric fields, cathode rays
Travel in straight lines
Of the three types of radioactivity characterized by Rutherford which is/are electrically charged
Alpha and beta Ray's
`Of the three types of radioactivity characterized by Rutherford which is slash or not electrically charged
Of the three types of radioactivity characterized by Rutherford which are particles
Alpha and beta Ray's
Of the three types of radioactivity characterized by Rutherford which type does not become deflected by an electric field
Of the following, the smallest and lightest subatomic particle is the
All Atoms of a given element have the same
number of protons
Which Atom has the smallest number of neutrons
Which of the following Atoms has the smallest number of neutrons
Carbon - 12
There are _______ electrons, _________ protons, and __________ neutrons in an atom of xenon(^132, <54)
54, 54, 78
An atom of the most common isotope of gold, 197 Au, has ______ protons, ______ neutrons, and ______electrons
79, 118, 79
Which combination of protons, neutrons, and electrons is correct for the isotope of copper 63/29 Cu?
29, 34, 29
Which isotope has 45 neutrons
Isotopes are Atoms that have the same _______ But differing ___________
Atomic numbers, mass numbers
The nucleus of an atom does not contain
The subatomic particles located in the nucleus with no overall charges are
Different isotopes of a particle element contain the same number of
Different isotopes of a particular element contain different numbers of
Which of the following basic forces is so small that it has no chemical significance?
Gravitational forces act between objects in proportion to their
Tomic mass is presently based on assigning an exact integral mass to an isotope of
In the periodic table, the elements are arranged in
Order of increasing atomic number
elements _____ Exhibit similar physical and chemical properties
In the same group of the periodic table
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