Ch. 11 - Nonmetals Part 2 (Groups 14-17 and Boron) Flashcards
Which group of elements exists as diatomic molecules?
Group 17 (halogens)
What ions do halogens form?
-1
How many valence electrons to halogens have?
7
What role do halogens play in redox reactions?
Oxidizing agent
What suffix is added to oxoanions with one oxygen molecule?
Hypo- -ite
What suffix is added to oxoanions with two oxygen molecules?
-ite
What suffix is added to oxoanions with three oxygen molecules?
-ate (-ite for sulphite and phosphite)
What suffix is added to oxoanions with four oxygen molecules?
per- -ate (just -ate for sulphate and phosphate)
What prefix is added to oxoanions that have an added hydrogen cation?
hydrogen-
What is a chalcogen?
Elements in group 16.
What ions do chalcogens form?
-2
How many valence electrons do chalcogens have?
6
What is an allotrope?
Another natural form of an element. (For example, O2, and O3)
What processes produce S8?
The Frasch process (from sulfur deposits) and the Claus process (from hydrogen sulphide).
What are pinctogens?
Group 15 elements.