NEW
Font size
WorksheetsPeriodic Table
Total questions: 25
Worksheet time: 17mins
The order of elements in the periodic table is based on
the number of protons in the nucleus.
the electric charge of the nucleus.
the number of neutrons in the nucleus.
atomic mass.
Atoms of elements that are in the same group have the same number of
protons.
neutrons.
valence electrons.
protons and neutrons.
Which of the following elements is an alkali metal?
calcium
magnesium
mercury
sodium
How was Mendeleev's periodic table arranged?
by increasing atomic mass
by decreasing atomic mass
by increasing atomic number
by decreasing atomic number
Mendeleev left gaps in his periodic table because
the table was too small.
protons belonged there.
the table was too full.
no known elements fit there.
Each column of the periodic table is
an element.
a group.
an isotope.
a period.
The three main groups of elements are metals, nonmetals, and
inert gases.
alkali metals.
radioactive isotopes.
semiconductors/metalloids.
Most elements are
metals.
nonmetals.
metalloids.
semiconductors.
Elements in an elemental family have similar
atomic symbols.
atomic sizes.
atomic weights.
chemical properties.
The order of elements in the modern periodic table is based on an element's
atomic number.
name.
chemical symbol.
atomic mass.
Which of the following is a property of group 18 elements?
malleable
brittleness
high electrical conductivity
unlikely to react with other elements
