Chalcogens Flashcards
Also known as the oxygen family
chalcogens
Elements that belong to the group 16
Chalcogens
Color of chalcogens
silvery-gray in common
Melting point of chalcogens
-219 C to 988 C
Boiling point of chalcogens
Ranging from -297.31 to 1810
Metallic character of chalcogens
increases down a group
True or False: Density of chalcogens increase as group goes downwards
True
Chalcogens solubility depends on the _________
polarity
How many valence electrons does chalcogens have
6
Chalcogens readily forms _____ with other elements
oxides
chalcogens react with metals to form _____ and _______
sulfides and selenides
_____, is known for its chemical reactivity
sulfur
True or False: Chalcogens exhibit both acidic and basic properties
True
True or False: are non-essential elements in biological systems
False
Allotropes of sulfur
rhombic sulfur and monoclinic sulfur
Heaviest and only radioactive chalcogen
Polonium
Treatment for indigestion
Aluminum oxide
Mask the bitter taste of drugs
citric acid
Raw material for aspirin
Acetic anhydride
used for fluorinating
sulfur tetraflouride
Used in making heavy water
Hydrogen sulfide
non-CNS depressant
Ammonium sulfate
an oxidizing agent
Selenium oxide
Used to maintain plasma selenium
Selenious acid
