Welcome to the Quiz!
This quiz contains 14 questions from a mix of 1 subtopics.
What are the products formed when calcium is added to water?
(Select all that apply).
CaOH
CaO
H2
Ca(OH)2
O2
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The elements in group 2 all have electrons in an outer -orbital.
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What happens to the atomic radius of group 2 elements going down the group?
it stays the same
it decreases
it increases
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What is the general formula for the metal oxide formed when group 2 elements (M) react with oxygen?
M2O
MO2
MO
MO3
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How does the electron shielding effect change as we move down group 2?
it increases
it decreases
it stays the same
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How does nuclear charge change as we move down group 2?
it increases
it decreases
it stays the same
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Which statement is true about the reactivity of group 2 elements?
magnesium is more reactive than strontium
calcium is more reactive than strontium
calcium is more reactive than magnesium
magnesium is more reactive than calcium
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What is the role of group 2 elements in redox reactions?
to act as reducing agents
to act as oxidising agents
to form covalent bonds
to act as catalysts
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What is the trend in first ionisation energies of group 2 elements as we move down the group?
they decrease
they increase
they remain the same
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What are the products of the reaction between magnesium and dilute sulfuric acid?
(Select all that apply).
MgO
MgS
MgSO4
O2
H2
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What is the least reactive element in group 2?
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Why do atomic radii increase down a group?
the number of electrons in the outer energy level increases
the charge on the nucleus increases
the number of electron energy levels increases
the number of sub-atomic particles in the nucleus increases
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Which statement accurately describes how the oxidation numbers of group 2 elements change during redox reactions?
oxidation number changes from -2 to 0
oxidation number changes from 0 to +2
oxidation number changes from +2 to 0
oxidation number changes from 0 to -2
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Which group 2 metal reacts most vigorously with water?
magnesium
strontium
barium
calcium
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