Chapter 2: Chemical Context of Life Flashcards
0
Q
96% of living matter …
A
oxygen, carbon, hydrogen, nitrogen
*remaining 4: Ca, P, K, S
1
Q
Matter is ?
A
Anything that takes up space and has mass
2
Q
What is a trace element?
A
Organism requires only in minute quantities
Ex: Fe
3
Q
mass#?
A
protons+neutrons
4
Q
Atomic number
A
Number of protons
5
Q
Units of measure for subatomic particles
A
Dalton
6
Q
Isotope
A
Different atomic form same element
7
Q
Radioactive isotope
A
Nucleus decays spontaneously giving off particle and energy
8
Q
Types of bonds
A
Covalent
Ionic
Hydrogen
Van der waals interaction
