Chemistry Concepts and Applications

Chapter 8: Periodic Properties of the Elements

Standardized Test Practice

1
An element with an atomic number less than that of magnesium has properties of both a metal and a non-metal. What is that element?

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A)silicon
B)phosphorus
C)beryllium
D)boron
2
In terms of atomic radius, which is the largest atom?

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A)lead
B)antimony
C)selenium
D)chlorine
3
The iron triad, iron, cobalt, and nickel ar all __________.

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A)non-metals
B)naturally magnetic
C)extremely rare on Earth
D)poor conductors.
4
In general, atomic size __________ from left to right across a period.
A)decreases
B)remains the same
C)increases
D)increases, then decreases
5
Among the ions F-, Li+, Cs+, and At-, which would you expect to have the smallest ionic radius?
A)Li+
B)Cs+
C)F-
D)At-
6
This alkali-metal compound is used in drain cleaners and in the digestion of wood pulp.
A)sodium hydroxide
B)sodium carbonate
C)sodium chloride
D)sodium nitrate
7
Metallic sodium is obtained from NaCl through __________.
A)condensation
B)electrolysis
C)freezing
D)thermal decomposition
8
A radioactive isotope of this alkaline-earth metal with a mass number of 90 can replace calcium in the hydroxyapatite of bones.
A)barium
B)beryllium
C)magnesium
D)strontium
9
This Group 14 element is used in making ceramics, glass, and cement.
A)carbon
B)lead
C)silicon
D)tin
10
Ozone is an allotrope of this element.
A)oxygen
B)lead
C)osmium
D)neon
11
This halogen is absorbed readily by the thyroid gland.
A)bromine
B)chlorine
C)fluorine
D)iodine
12
Many towns and cities add these compounds to their water supplies.
A)carbides
B)fluorides
C)hydrides
D)sulfides
13
This noble gas is used to carry scientific instruments into the upper atmosphere.
A)argon
B)helium
C)krypton
D)xenon
14
This nonmetal is used to increase the hardness of steel.
A)carbon
B)nitrogen
C)oxygen
D)chlorine
15
Atoms that transfer electrons form __________ bonds.
A)ionic
B)covalent
C)hydrogen
D)coordinate
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