Chemistry: Matter and Change

Chapter 6: The Periodic Table and Periodic Law

Chapter Test Practice

1
Halogens are good disinfectants. Which of the following is a halogen?
A)N
B)O
C)Cl
D)Fe
2
Why do atomic numbers jump by 15 from left to right in the section of the periodic table shown above

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A)The missing elements have not yet been discovered.
B)The missing elements are all radioactive.
C)The missing elements form the lathanide and actinide series, usually found below the periodic table.
D)The missing elements do not exist.
3
Looking only at the box above, what can you say for certain about the element immediately to the right of oxygen on the periodic table?

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A)The element is a gas.
B)The element's name will begin with the letter P.
C)The element's atomic weight will be 18.
D)The element will have atomic number 9.
4
Why are both hydrogen and cesium s-block elements, when hydrogen has one electron and cesium has 55?

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A)All blocks contain at least one element from each period.
B)Blocks of elements on the periodic table are based only on an element's valence electrons.
C)The s-block includes only the most reactive elements.
D)They have identical electron configurations.
5
Atoms of elements in group 1 have ____________.
A)one electron in their outermost energy level
B)two electrons in their outermost energy level
C)seven electrons in their outermost energy level
D)eight electrons in their outermost energy level
6
What makes the d block wider than either the s block or the p block?

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A)The d sub-orbital can hold ten electrons, making the d block ten elements wide.
B)The d block is the most researched area of the periodic table.
C)The elements in the d block are more important than the elements in the rest of the table.
D)The elements in the d block are all metals.
7
From the table above, determine the atomic mass of the noble gas at the end of period 5.

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A)18
B)36
C)54
D)52
8
Atoms with large ionization energy values are __________.

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A)more likely to form positive ions
B)less likely to form positive ions
C)most likely to lose their outer electrons
D)lacking valence electrons
9
Where would you expect to find the smallest atoms?

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A)upper left
B)upper right
C)lower left
D)lower right
10
Why are the ionic radii generally larger for group 15 than for group 17?

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A)Atoms in group 15 are larger than atoms in group 17.
B)Atoms in group 15 have more protons than atoms in group 17
C)Ions forming from group 15 atoms have a greater negative charge than ions forming from group 17 atoms.
D)Atoms in group 15 are less likely to lose electrons than atoms in group 17.
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