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WorksheetsHistory of Periodic Table of Elements
Total questions: 15
Worksheet time: 8mins
Who arranged the known elements into horizontal rows of increasing atomic mass leaving gaps for as yet undiscovered elements?
Mendeleev
Meyer
Newlands
Moseley
Who constructed a similar table to Mendeleev based on increasing atomic mass but did not leave gaps?
Moseley
Meyer
Newlands
Dobereiner
Who suggested that the physical and chemical properties were related to the atomic number, rather than atomic mass?
Meyer
Mendeleev
Moseley
Newlands
How did Dmitri Mendeleev predict elements?
Time traveled
Predicted the properties by the atomic numbers left
Guess and checked
Calculated the atomic mass and properties
How are the elements arranged on the periodic table today?
By atomic mass
By number of electrons
By atomic number
By alphabetic order
How many elements does the periodic table currently have?
(Current = 2018)
60
118
181
227
The idea of "triads" of elements with similar properties was due to
John Newlands
Johann Dobereiner
Dmitri Mendeleev
Henry Moseley
The "Law of Octaves" was the brainchild of
Glenn Seaborg
Lothar Meyer
Johann Dobereiner
John Newlands
The "Law of Octaves" stated that
The properties of the elements repeated every eighth element when arranged by their atomic mass
Elements could be classified in groups of three based on their mass and properties
The properties of the elements repeated of a regular basis when arranged by their atomic number
doubling the frequency of a tone raises its pitch by an octave
Why was Henry Moseley responsible for solving the mystery of the anomalous elements on the periodic table?
He corrected the mass of those elements
He corrected the properties of those elements
He discovered the electron
He discovered atomic number
How many periods does the Periodic Table have?
18
10
7
8
How are elements organized in the periodic table ?
Alphabetically
Based on physical and chemical properties
Increasing number of electrons
Most reactive to least reactive
Which accurately describes nonmetals?
Poor conductors of electricity
Often used in computer parts
Both malleable and ductile
Both dull and brittle
Each horizontal row on the periodic table is called a what?
Group
Row
Period
Family
