Chemistry Concepts and Applications

Section 1: Development of the Periodic Table

Self Check Quizzes

1
The properties of the chemical elements in the periodic table occur in __________.

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A)ascending sequence
B)descending sequence
C)no discernible pattern
D)repeating patterns
2
What are the trends in melting point and density for the halogens as atomic mass goes up?

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A)density increases, but melting point decreases
B)density decreases, but melting point increases
C)both decrease
D)both increase
3
This scientist arranged some elements in triads based on their atomic masses and other properties.
A)Dobereiner
B)Einstein
C)Mendeleev
D)Newlands
4
Mendeleev saw that properties of the elements repeated in an orderly way when he organized them according to __________.
A)decreasing atomic number
B)increasing atomic mass
C)increasing atomic size
D)increasing volume
5
These two elements are liquids at room temperature and pressure.
A)lithium and cesium
B)mercury and bromine
C)mercury and oxygen
D)silver and nitrogen
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