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WorksheetsPeriodic Table of Elements
Total questions: 15
Worksheet time: 8mins
What is common among elements in the same group?
They have the same number of energy levels.
They have the same number of valence electrons.
They have the same number of protons.
They have the same number of neutrons and protons.
Which statement best describes the arrangement of elements in the periodic table?
Elements are arranged in decreasing atomic mass from left to right.
Elements are arranged in decreasing atomic number from left to right.
Elements are arranged in increasing atomic number from left to right
Elements are arranged in increasing number of neutrons from left to right.
Which pair of elements has the most similar properties?
Be and B
O and S
H and Hg
Na and F
Which group in the periodic table of elements has the greatest number of metals?
Group 1 (IA)
Group 6 (VIB)
Group 13 (IIIA)
Group 18 (VIIIA)
He, Ne, and Ar are all noble gases. What is common among these gases?
They are flammable.
They are highly reactive.
They are metals.
They are unreactive.
When elements fall under the same column, this means they belong to the same ______.
group
period
The image below shows how information about a specific element is represented on the periodic table.
What information does the symbol “C” give about the element?
atomic number
atomic mass
density
chemical symbol
The image below shows how information about a specific element is represented on the periodic table.
What information does the symbol “6” give about the element?
atomic number
atomic mass
density
chemical symbol
Which group of elements are also called semi-metals?
Alkali metals
Metalloids
Halogens
Noble gases
noble gases
Who is the scientist who organized the periodic chart by ATOMIC NUMBER?
Moseley
Mendeleev
Einstein
Miller
Who is the scientist who first organized the chart by ATOMIC MASS?
Moseley
Mendeleev
Einstein
Miller
What did Mosely discover to reorganize the new chart?
The number of protons in each element
The average atomic mass
The names of the elements
The elements diary
