Multiple Choice
Which element would be expected to have chemical properties most similar to calcium (Ca) based on periodic table group trends?
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4. Atoms and Elements
Periodic Table: Group Names
Multiple Choice
Which type of element is least likely to react with other elements under normal conditions?
A
A halogen (Group 17)
B
A noble gas (Group 18)
C
An alkali metal (Group 1)
D
An alkaline earth metal (Group 2)
Verified step by step guidance1
Understand the question is asking about the reactivity of different types of elements under normal conditions.
Recall that elements in Group 1 (alkali metals) are highly reactive because they have one electron in their outer shell that they tend to lose easily.
Recognize that elements in Group 2 (alkaline earth metals) are also reactive, though less so than alkali metals, because they have two electrons in their outer shell that they can lose.
Know that halogens (Group 17) are very reactive nonmetals because they need one electron to complete their outer shell, making them eager to react with other elements.
Identify that noble gases (Group 18) have a full outer electron shell, making them very stable and least likely to react with other elements under normal conditions.
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