WorksheetsThe Periodic Table
Total questions: 45
Worksheet time: 45mins
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
In Mendeleev's periodic table, elements in each column had similar
atomic masses.
properties.
atomic numbers.
symbols.
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.
Metals tend to be
gases.
dull.
brittle.
good conductors.
Which group is very stable due to the fact that they have a full outermost energy level?
alkali metals
halogens
alkaline-earth metals
noble gases
Which of the following is a property of group 18 elements?
malleable
brittleness
high electrical conductivity
unlikely to react with other elements
Based on its location on the periodic table, which of these elements most likely has physical and chemical properties most similar to boron (B)?
magnesium (Mg)
aluminum (Al)
neon (Ne)
chlorine (Cl)
Which of the following groups on the Periodic Table is likely to form positively charged ions (or cations)?
group 1
group 13
group 17
group 18
Alkali metals are extremely reactive because they
have every small atomic masses.
are not solid at room temperature.
have one valence electron that is easily removed to form a positive ion.
have two valence electrons that form compounds with calcium and magnesium.
From this element key of Nitrogen, determine the atomic mass of nitrogen
7
7.01
14.01
21.01
Look at the periodic table. Which list of elements forms a group on the periodic table?
Li, Be, B, C, N, O, F, and Ne
He, Ne, Ar, Kr, Xe, and Rn
B, Si, As, Te, and At
Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Ni, and Zd
Which is NOT a property of metals?
brittleness
conductivity
ductility
luster
What are two properties that make a metal a good choice to use as wire in electronics?
conductivity, malleability
ductility, conductivity
luster, malleability
malleability, high density
Using the periodic table, which element is a metalloid?
carbon
silicon
oxygen
aluminum
Where are most metals on the periodic table?
on the left side only
on the right side only
in the middle only
on the left side and in the middle
The table above lists some information about certain elements in group 17. Which statement describes what happens to these elements as atomic number increases?
Both melting point and boiling point decrease.
Melting point increases and boiling point decreases.
Melting point decreases and boiling point increases.
Both melting point and boiling point increase.
Where are most nonmetals located on the periodic table?
in the bottom row
on the left side and in the middle
on the right side
in the top row
In an element box, the number at top is the
atomic number
atomic name
atomic mass
atomic symbol
The number of neutrons in an atom can be found by
adding the number of neutrons and protons together.
adding the atomic mass and the atomic number.
subtratcting the atomic number from the atomic mass.
subtracting the atomic mass from the atomic number.
___________________ are positively charged particles located in the nucleus of an atom.
Electrons
Neutrons
Protons
Isotopes
Isotopes are atoms of the same element with different numbers of
electrons
neutrons
protons
nuclei
Rows in the Periodic Table are called
Periods
Groups/Families
Cousins
Metals
Column in the Periodic Table are called
Periods
Groups/Families
Cousins
Metals
Protons have a ____________ charge, neutrons have a ____________ charge, and electrons have a ____________ charge.
positive; negative, neutral
positive, neutral, negative
neutral, negative, positive
negative, neutral, positive
The history of the Atomic Theory involves many changes from its early form. Theories change because
people decide to no longer agree with them.
all theories must be changed after a certain time.
new evidence is found that allows the theory to be changed.
when scientists die, their theories are always changed.
The chemical symbol in this element box is
26
Fe
Iron
55.845
Models are used to study atoms because atoms are very
dangerous
sneaky
rare
small
The three kinds of elements are
metals, nonmetals, and liquid metals
metals, nonmetals, and metalloids
metals, solids, and liquids
metalloids, asteroids, and nonmetals
Which arrow shows the direction of the groups on the
Periodic Table?
Which arrow shows the direction of periods on the
Periodic Table?
What is the chemical symbol for sodium?
S
So
Na
K
How many protons are in a nitrogen atom?
5
7
14
28
In a neutral atom, which subatomic particles are always equal?
protons and electrons
protons and neutrons
neutrons and electrons
protons, neutrons, and electrons
