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WorksheetsExploring the Modern Periodic Table
Total questions: 12
Worksheet time: 6mins
What are the main groups of the modern periodic table?
Alkali metals, Alkaline earth metals, Transition metals, Halogens, Noble gases
Lanthanides
Metalloids
Actinides
Which group contains the noble gases?
Group 1
Group 3
Group 18
Group 14
What is the significance of the alkali metals in the periodic table?
Alkali metals are known for their low melting points only.
Alkali metals are non-reactive and stable under normal conditions.
Alkali metals are significant for their reactivity, ability to form strong bases, and role in various chemical processes.
Alkali metals are primarily used in jewelry making.
How does atomic radius change across a period?
The atomic radius increases across a period.
The atomic radius remains constant across a period.
The atomic radius fluctuates randomly across a period.
The atomic radius decreases across a period.
What trend is observed in electronegativity as you move down a group?
Electronegativity decreases as you move down a group.
Electronegativity fluctuates randomly as you move down a group.
Electronegativity increases as you move down a group.
Electronegativity remains constant as you move down a group.
What is the electron configuration for oxygen?
1s² 2s² 2p⁴
1s² 2s² 2p⁶
1s² 2s² 2p³
1s² 2s² 2p²
How do you determine the number of valence electrons in an element?
The number of valence electrons is the same for all elements in the same period.
Valence electrons can be calculated using the element's electron affinity.
The number of valence electrons is determined by the group number of the element in the periodic table.
The number of valence electrons is determined by the atomic mass of the element.
What is the trend in ionization energy across a period?
Ionization energy decreases across a period.
Ionization energy remains constant across a period.
Ionization energy fluctuates randomly across a period.
Ionization energy increases across a period.
Which elements are considered transition metals?
Iron, copper, nickel, zinc, silver, gold, and other elements in groups 3 to 12.
Lithium, sodium, potassium
Helium, neon, argon
Carbon, nitrogen, oxygen
How does the reactivity of halogens change down the group?
The reactivity of halogens remains constant down the group.
The reactivity of halogens increases down the group.
The reactivity of halogens fluctuates down the group.
The reactivity of halogens decreases down the group.
What is the electron configuration for a sodium ion?
1s² 2s² 2p⁶ 3s¹
1s² 2s² 2p⁶
1s² 2s² 3s²
1s² 2s² 2p⁶ 3p⁶
What periodic trend explains the increase in metallic character down a group?
The increase in atomic size and decrease in ionization energy.
The increase in nuclear charge and decrease in electron shielding.
The decrease in atomic size and increase in ionization energy.
The increase in electronegativity and decrease in atomic radius.
