Chapter 4: The Elements Flashcards
1
Q
What can elements form
A
Compounds/substances
2
Q
How many elements are currently known
A
118
3
Q
How many elements make up most of the earths compounds
A
9
4
Q
Which 4 elements form the basis for all biologically important molecules
A
Oxygen, carbon, hydrogen, and nitrogen
5
Q
All matter can be broken into this
A
Elements