Elements versus Compounds Flashcards
1
Q
How many different Compounds are known to us?
A
Ten million (10,000,000).
2
Q
What is a Compound?
A
A combination of several elements into a more complex substance.
3
Q
What is an Element?
A
An element is a pure substance that cannot be separated into simple substances by physical or chemical means.
4
Q
What are the Seven Elements that are Diatomic?
A
Oxygen, Nitrogen, Hydrogen, Fluorine, Chlorine, Bromine, and Iodine.
5
Q
What are Diatomic Elements?
A
Elements that do not appear by themselves in nature.
6
Q
How many naturally occurring elements are there?
A
Ninety-two.
7
Q
How are Elements named?
A
By codes ranging between one and three letters long. They also have longer normal names.
