Questions and Answers
How many valence electrons do all halogens have?
7
Element A is located between group 16 and noble gas on the periodic table. A is a(n)?
halogen
Which other elements of the periodic table do halogens readily react with to form halide salts?
alkali metals and alkaline earth metals
During most chemical reactions, what happens to the atoms of a halogen?
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Which halogen is a purple-gray solid?
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Where are halogens frequently found in nature?
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Which halogen is a dark orange liquid?
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If 'n' stands for a given principal energy level, what is the outer electron configuration of the halogens?
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Study Notes
Halogen Properties and Characteristics
- Halogens possess 7 valence electrons, crucial for their reactivity.
- Positioned between group 16 and noble gases on the periodic table, halogens are unique elements.
- They readily react with alkali metals and alkaline earth metals to form halide salts.
Chemical Behavior
- Halogen atoms typically gain one electron during chemical reactions, enhancing their stability.
- The outer electron configuration of halogens follows the pattern ns²np⁵, indicating their electronic structure.
Physical Properties of Halogens
- Iodine is recognized as a purple-gray solid, displaying its unique physical state.
- Bromine is noted for being a dark orange liquid, distinguishing it from other halogens.
Occurrence in Nature
- Halogens are commonly found in nature as salts, particularly in ocean environments, emphasizing their abundance in marine ecosystems.
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Description
Test your knowledge of halogens with these CK12 flashcards. Discover their valence electrons, reactivity with other groups, and their placement in the periodic table. Perfect for studying chemistry concepts related to halogens.
