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- 1. Multiple Choice
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.
- 2. Multiple Choice
Atoms of elements that are in the same group have the same number of
protons.
neutrons.
valence electrons.
protons and neutrons.
- 3. Multiple Choice
Which of the following elements is an alkali metal?
calcium
magnesium
mercury
sodium
- 4. Multiple Choice
In Mendeleev's periodic table, elements in each column had similar
atomic masses.
properties.
atomic numbers.
symbols.
- 5. Multiple Choice
How was Mendeleev's periodic table arranged?
by increasing atomic mass
by decreasing atomic mass
by increasing atomic number
by decreasing atomic number
- 6. Multiple Choice
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.
- 7. Multiple Choice
Each column of the periodic table is
an element.
a group.
an isotope.
a period.
- 8. Multiple Choice
The three main groups of elements are metals, nonmetals, and
inert gases.
alkali metals.
radioactive isotopes.
semiconductors/metalloids.
- 9. Multiple Choice
Most elements are
metals.
nonmetals.
metalloids.
semiconductors.
- 10. Multiple Choice
Elements in an elemental family have similar
atomic symbols.
atomic sizes.
atomic weights.
chemical properties.
- 11. Multiple Choice
The order of elements in the modern periodic table is based on an element's
atomic number.
name.
chemical symbol.
atomic mass.
- 12. Multiple Choice
Which statement about the alkali metals is correct?
They are located in the left-most column of the periodic table.
They are extremely nonreactive.
They are usually gases.
They form negative ions with a 1- charge.
- 13. Multiple Choice
Metals tend to be
gases.
dull.
brittle.
good conductors.
- 14. Multiple Choice
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
- 15. Multiple Choice
Which of the following is a property of group 18 elements?
malleable
brittleness
high electrical conductivity
unlikely to react with other elements
- 16. Multiple Choice
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)
- 17. Multiple Choice
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
- 18. Multiple Choice
Which of the following elements would most likely be a shiny, gray-colored solid at room temperature, conduct electricity, and dent when hit with a hammer?
argon (Ar)
chlorine (Cl)
sulfur (S)
aluminum (Al)
- 19. Multiple Choice
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.
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