Multiple Choice
Which block of the periodic table does manganese (Mn) belong to?
2. Atoms & Elements
Periodic Table: Group Names
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Which statement best describes the reactivity of noble gases on the periodic table?
A
Noble gases are highly reactive and readily form compounds with other elements.
B
Noble gases are moderately reactive and commonly form ionic bonds.
C
Noble gases are generally unreactive due to their full valence electron shells.
D
Noble gases are reactive only with alkali metals.
Verified step by step guidance1
Understand the electronic configuration of noble gases: They have full valence electron shells, which means their outermost energy level is complete with electrons.
Recall that atoms tend to react to achieve a full valence shell, but since noble gases already have this stable configuration, they have little tendency to gain, lose, or share electrons.
Recognize that this full valence shell leads to very low chemical reactivity, making noble gases generally inert or unreactive under normal conditions.
Note that while noble gases are mostly unreactive, some heavier noble gases can form compounds under extreme conditions, but this is not common behavior for the group as a whole.
Conclude that the best description of noble gases' reactivity is that they are generally unreactive due to their full valence electron shells.
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