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The Simplest Matter
Test Description: Glenco 6th science va
Instructions: Answer all questions to get your test result.
1) An example of a synthetic element is __________.
A
aluminum
B
nitrogen
C
iron
D
plutonium
2) The __________ is a chart created by chemists to organize the elements.
A
metalloid list
B
isotope
C
periodic table
D
mass number
3) An element's atomic number is the number of __________ in the nucleus of each atom of that element.
A
positrons
B
neutrons
C
electrons
D
protons
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
30
B
25
C
55
D
80
5) Atoms of the same element that have different numbers of neutrons are called?
A
metals
B
isotopes
C
nonmetals
D
metalloids
6) Which of the following best describes the three general groups of elements?
A
metals, metalloids, and synthetics
B
solid, liquid, and gas
C
metals, nonmetals, and noble gases
D
metal, metalloids, and nonmetals
7) Which of the following is characteristic of most metals?
A
gases at room temperature
B
shiny luster
C
poor conductors of electricity
D
dull in appearance
8) What group contains elements that are gases at room temperature?
A
metals
B
isotopes
C
nonmetals
D
metalloids
9) 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 average mass of an atom
C
the number of electrons in each atom
D
the number of protons in each atom
10) An atom containing six positive charges and six negative charges has __________ charge.
A
a negative
B
no net
C
a strong negative
D
a positive
*select an answer for all questions
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