Name: ___________________________________    Date: ______________



Practice Test #2



1.
Which of the following does Dalton's Atomic Theory not address?
A.
Hydrogen and oxygen gas combine to form water.
B.
H2O2 consists of 16 g of oxygen for every 1 g of hydrogen.
C.
The seat you are sitting on is made up of atoms.
D.
Hydrogen ignites in an open flame but helium does not.
E.
The relative mass of a carbon atom is about 12 times that of hydrogen.


2.
Which statement below is incorrect?
A.
Dalton's statement "All atoms of a given element are identical" is no longer accepted because of the existence of isotopes and ions.
B.
O3 (ozone) is considered a molecule but is not considered an element.
C.
One mole of aluminum is equal to the number of aluminum atoms in 26.98 g of aluminum.
D.
Gases behave the most ideally at high temperatures and low pressures.
E.
At least two of the above statements (a-d) are incorrect.


3.
The total number of atoms indicated by the formula Ca3(PO4)3 is
A.
6
B.
10
C.
16
D.
18
E.
7


4.
Mendeleev is credited with the modern atomic theory of atoms. T/F ______________
A. True
B. False


5.
Which of the following statements is/are true?

I.   John Dalton provided the first experimental support for the atom.
II.   Ernest Rutherford proved the existence of a nucleus by shooting positively charged particles at a thin gold-foil sheet.
III.   J. J. Thompson proved that electrons travel in elliptical orbits around the nucleus.
IV.   Energy in an atom is quantized, so when electrons fall to their ground state, white light can be observed.
A.
I, II
B.
I, III
C.
I, II, III
D.
II, IV
E.
All of the above statements (I – IV) are correct.


6.
Which atomic particle determines the chemical behavior of an atom?
A.
proton
B.
electron
C.
neutron
D.
nucleus
E.
none of these


7.
Which of the following statements are true?
I. The number of protons in an element is the same for all neutral atoms of that element.
II. The number of electrons in an element is the same for all neutral atoms of that element.
III. The number of neutrons in an element is the same for all neutral atoms of that element.
A.
I, II, and III are all true.
B.
Only I and II are true.
C.
Only II and III are true.
D.
Only I and III are true.
E.
I, II, and III are all false.


8.
The number of neutrons in one atom of is
A.
82
B.
206
C.
124
D.
288
E.
none of these


9.
How many protons, electrons, and neutrons, respectively, does have?
A.
13, 13, 14
B.
13, 10, 14
C.
13, 13, 27
D.
13, 10, 27
E.
13, 13, 13


10.
Identify each of the following.
a. The heaviest noble gas
b. The transition metal that has 24 electrons as a +3 ion
c. The halogen in the third period
d. The alkaline earth metal that has 18 electrons as a stable ion

Answer:


11.
Classify each of the following as a metal, nonmetal, or metalloid.
a. arsenic
______________
b. argon
______________
c. calcium
______________
d. plutonium
______________
 

Answer:


12.
Give the name and symbol for the element that has mass number 64 and 35 neutrons.

Answer:


13.
Which of the following elements is most similar to chlorine?
A.
H
B.
He
C.
Na
D.
Hg
E.
Br


14.
True or false? In naming ionic compounds, the cation is always named first and the anion second.
A. True
B. False


15.
The correct name for LiCl is
A.
lithium monochloride
B.
lithium(I) chloride
C.
monolithium chloride
D.
lithium chloride
E.
monolithium monochloride


16.
The correct name for FeO is
A.
iron oxide
B.
iron(II) oxide
C.
iron(III) oxide
D.
iron monoxide
E.
iron(I) oxide


17.
What is the formula for sulfur trioxide?
A.
SO
B.
SO2
C.
SO3
D.
S3O
E.
S3O3


18.
The compound PI3 is named
A.
potassium iodide
B.
monophosphorus iodide
C.
phosphorus iodide
D.
phosphorus triiodide
E.
none of these


19.
The name for the acid HNO3 is ______________.

Answer:


20.
The correct name for an aqueous solution of HBr is
A.
bromic acid
B.
hydrobromic acid
C.
hypobromic acid
D.
hydrobromous acid
E.
hypobromous acid


21.
The name for the compound Sn(NO3)2 is ______________.

Answer:


22.
The name for MnBr2 is
A.
manganese(II) bromide
B.
manganese(I) bromide
C.
magnesium bromide
D.
manganese bromide
E.
manganese(III) bromide


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