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Chemistry
10th -
12thgrade
Periodic Table Basics - Regents Chemistry
20 questions
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- 1. Multiple Choice
The elements on the Periodic Table are arranged in order of increasing
atomic mass
atomic number
oxidation number
formula units
- 2. Multiple Choice
The elements in Group 2 are classified as
metals
metalloids
nonmetals
noble gases
- 3. Multiple Choice
Compared to the atoms of nonmetals in Period 3, the atoms of metals in Period 3 have
fewer electron shells
more electron shells
more valence electrons
fewer valence electrons
- 4. Multiple Choice
Which list of elements contains a metal, a metalloid and a nonmetal?
Ag, Si, I2
Ge, As, Ne
K, Cu, Br2
S, Cl2, Ar
- 5. Multiple Choice
Which property can be defined as the ability of a substance to be hammered into thin sheets?
conductivity
malleability
melting point
solubility
- 6. Multiple Choice
At STP, which element is a good conductor of electricity?
chlorine
iodine
silver
sulfur
- 7. Multiple Choice
Which elements have the most similar chemical properties?
Si, As, and Te
Mg, Sr, and Ba
N2, O2, and F2
Ca, Cs, and Cu
- 8. Multiple Choice
Which list represents the classification of the elements nitrogen, neon, magnesium and silicon, respectively?
metal, metalloid, nonmetal, noble gas
nonmetal, noble gas, metal, metalloid
nonmetal, metalloid, noble gas, metal
noble gas, metal, metalloid, nonmetal
- 9. Multiple Choice
At STP, O2(g) and O3(g) are two forms of the same element that have
the same molecular structure and the same properties
the same molecular structure and the different properties
different molecular structure and the same properties
different molecular structure and different properties
- 10. Multiple Choice
Which element tends not to react with other elements?
helium
hydrogen
phosphorus
potassium
- 11. Multiple Choice
Pure boron is chemically classified as a metalloid because boron
is malleable and ductile
is an excellent conductor or heat and electricity
exhibits metallic and nonmetallic properteis
none of the above
- 12. Multiple Choice
Which element is classified as a metalloid?
Cr
Cs
Sc
Si
- 13. Multiple Choice
Which element is a gas at STP?
sulfur
xenon
potassium
phosphorus
- 14. Multiple Choice
Which element is a liquid at STP?
bromine
cesium
francium
iodine
- 15. Multiple Choice
Which Group 15 element exists as diatomic molecules at STP?
phosphorus
nitrogen
bismuth
arsenic
- 16. Multiple Choice
Which element is an alkali metal?
hydrogen
calcium
sodium
zinc
- 17. Multiple Choice
Which element is a member of the halogen family?
K
B
I
S
- 18. Multiple Choice
Rubidium and cesium have similar chemical properties because, in the ground state, the atoms of both elements each have
one electron in the outermost shell
two electrons in the outermost shell
one neutron in the nucleus
two neutrons in the nucleus
- 19. Multiple Choice
The carbon atoms in graphite and the carbon atoms in diamond have different
atomic numbers
atomic masses
electronegativities
structural arrangements
- 20. Multiple Choice
Which atom in the ground state has a stable electron configuration?
carbon
magnesium
neon
oxygen
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