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Chemistry: Chapter 3
Test Description: 6th Grade
Instructions: Answer all questions to get your test result.
1) what information in the periodic table indicates the number of protons in an atom?
A
the element's atomic mass
B
the element's atomic number
C
the position of the element in its column
D
the element's chemical symbol
2) Most metals are not
A
good conductors
B
ductile
C
liquid at room temperature
D
malleable
3) In which part of an atom are the valence electrons located?
A
inside the nucleus
B
closest to the nucleus
C
furthest from the nucleus
D
throughout the entire atom
4) At room temperature, more than half of the nonmetal elements are
A
alloys
B
solids
C
liquids
D
gases
5) Which of the following statements about metals is true?
A
metals show a wide range of chemical properties
B
metals need to be stored in sealed containers for safety
C
metals do not react with oxygen
D
metals are highly reactive substances
6) Mendeleev created the first periodic table by arranging the elements in order by
A
decreasing atomic mass
B
increasing atomic mass
C
increasing melting points and densities
D
increasing atomic number
7) In the periodic table, the most reactive metals are found
A
in groups 13-16 in the center
B
in group 1, the first column on the left
C
in periods 6 and 7 at the bottom
D
in period 1, the first row across the top
8) Which member of the carbon family is a non metal
A
lead
B
carbon
C
tin
D
silicon
9) The elements in a row of the periodic table
A
are in the same period
B
have the same average atomic mass
C
are in the same family
D
have the same or nearly the same properties
10) Which group contains the most elements?
A
metals
B
transition elements
C
nonmetals
D
metalloids
11) The atomic number of an element is based on the
A
number of electrons around its core
B
number of protons in its nucleus
C
number of neutrons in its nucleus
D
mass of its nucleus
12) Which group of elements share characteristics with both metals and nonmetals?
A
metalloids
B
halogens
C
salt
D
alloys
13) Which of these statements is true about a column of the periodic table?
A
the elements have the same atomic mass
B
the elements have the same atomic number
C
the elements have a wide range of properties
D
the elements have similar properties
14) Which part(s) of the atom move around the nucleus?
A
neutrons
B
electrons
C
protons
D
Atomic mass units
15) What prediction did Mendeleev make that came true less than 20 years later?
A
he said that three new elements would be discovered and he described their properties
B
he predicted the atomic number of unknown elements
C
he predicted that a total of 112 elements would be discovered
D
he said that the periodic table would be developed into 19 families
*select an answer for all questions
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