Physical Science: The Nature of Matter, Book K

Section 2: The Simplest Matter

Self-Check Quiz-Eng.

1.
An example of a synthetic element is __________.
A)nitrogen
B)aluminum
C)iron
D)plutonium
2.
The __________ is a chart created by chemists to organize the elements.
A)mass number
B)periodic table
C)isotope
D)metalloid list
3.
An element's atomic number is the number of __________ in the nucleus of each atom of that element.
A)neutrons
B)electrons
C)protons
D)positrons
4.
The atomic number of manganese is 25; its mass number is 55. How many neutrons does an atom of manganese have in its nucleus?
A)25
B)55
C)30
D)80
5.
Atoms of the same element that have different numbers of neutrons are called?
A)isotopes
B)metals
C)nonmetals
D)metalloids
6.
Which of the following best describes the three general groups of elements?
A)metal, metalloids, and nonmetals
B)metals, nonmetals, and noble gases
C)metals, metalloids, and synthetics
D)solid, liquid, and gas
7.
Which of the following is characteristic of most metals?
A)dull in appearance
B)poor conductors of electricity
C)shiny luster
D)gases at room temperature
8.
Which of the following elements would make the best electrical wire?
A)carbon
B)fluorine
C)selenium
D)copper
9.
What group contains elements that are gases at room temperature?
A)metals
B)nonmetals
C)metalloids
D)isotopes
10.
The atomic mass of an element is __________ of that element.
A)the number of protons plus the number of neutrons of an atom
B)the number of protons in each atom
C)the average mass of an atom
D)the number of electrons in each atom
11.
An atom containing six positive charges and six negative charges has __________ charge.
A)a positive
B)a negative
C)no net
D)a strong negative
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