WorksheetsUnit 10-Periodic Table-Test Study Aide
Total questions: 30
Worksheet time: 30mins
In a periodic table, a set of properties repeats from
group to group
row to row
column to column
element to element
Which of the following elements in the halogen group is the most likely to be solid at room temperature?
Fluorine
Chlorine
Bromine
Iodine
Why are noble gases inert (nonreactive)
They only bond with other noble gases
They have a full valence shell (8 electrons)
They form +1 cations
They all have only one electron in their outermost energy level
Moving from left to right across a row of the periodic table, which of the following values increases by exactly one from element to element?
mass number
atomic mass unit
atomic number
isotope number
Most metallic elements have all of these properties EXCEPT
Being easily crumbled into pieces
A shiny luster
Being a good conductor of electricity
A high melting point
Elements in groups 3-12 are called _________________.
Metalloids
Transition Metals
Noble Gases
Isotopes
Mendeleev arranged the known chemical elements in a table according to increasing
atomic number
number of electrons
number of protons
mass
Which statement is true about the metalloid silicon?
Silicon does not conduct electric current under any circumstances
Silicon is a better conductor of electric current than sulfur is
Silicon's ability to conduct electric current does not vary with temperature
Silicon is a better conductor of electric current than silver is
At room temperature, none of the metals are
liquids
soft
malleable
gases
Which general statement does NOT apply to metals?
Most metals are brittle
Most metals are malleable
Most metals are good conductors of electric current
Most metals are ductile
Group 7A of the periodic table contains the
most reactive metals
most reactive non-metals
least reactive metals
least reactive non-metals
Atoms of the most reactive elements tend to have
four or five valence electrons
one or seven valence electrons
no valence electrons
eight valence electrons
As you move from left to right across a period, the number of valence electrons
increases
increases then decreases
decreases
stays the same
Compared with Group 2A elements, Group 6A elements have
more valence electrons
fewer valence electrons
more atoms in the ground state
more isotopes
The tendency of an element to react is closely related to
attractions between its atoms
the ratio of protons to neutrons in atoms of that element
its atomic mass
the number of valence electrons in atoms of that element
A member of the Boron family has three valence electrons, while a member of the Nitrogen family has
none
three
five
four
Which statement is NOT true about the elements fluorine, chlorine, and iodine?
They are all halogens
They are the same as noble gases
They react easily with metals
They are all non-metals
Among alkali metals, the tendency to react with other substances
varies in an unpredictable way within the group
increases from top to bottom within the group
decreases from top to bottom within the group
does not vary among the members of the group
Which of the following would be the best conductor of electricity?
silicon
iodine
silver
sulfur
Elements in an element family have similar
Chemical properties
Atomic sizes
Atomic weights
Atomic symbols
What is the one metal that is liquid at room temperature
xenon
bromine
mercury
hydrogen
The smallest unit of an element that has properties of that element is a(n):
compound
proton
neutron
atom
Which of the following group 1A elements are most reactive?
Cs (Cesium)
Li (Lithium)
K (Potassium)
Na (Sodium)
Two highly reactive elements in Period 2 are the metal lithium and the
metalloid arsenic
nonmetal selenium
nonmetal fluorine
nonmetal krypton
Tearing a sheet of paper would be considered a ____________ change.
chemical
physical
biological
density
At higher temperatures
particles in an object move faster
particles in an object move slower
particles in an object have less energy
liquids contract
Elements that have properties of both metals and non metals are called
halogens
alkali metals
semiconductors (aka metalloids)
transition metals
Very stable elements due to the fact that they have a full outermost energy level are known as:
halogens
alkaline-earth metals
noble gases
semiconductors (aka metalloids)
Reactive elements of group 17 that are poor conductors are known as:
halogens
alkaline-earth metals
noble gases
transition metals
Which of these would be the best conductor of electricity?
iodine
silicon
silver
sulfur
