Multiple Choice
How many valence electrons do the alkaline earth metals have in their elemental state?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Halogens are elements found in Group 17 of the periodic table. How many valence electrons does a halogen atom typically possess?
A
5
B
2
C
7
D
8
Verified step by step guidance1
Identify the group number of halogens in the periodic table, which is Group 17.
Recall that the group number for main-group elements corresponds to the number of valence electrons for those elements.
Since halogens are in Group 17, they have 7 valence electrons.
Understand that valence electrons are the electrons in the outermost shell of an atom and determine its chemical properties.
Therefore, a typical halogen atom possesses 7 valence electrons.
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