Chapter 2 - Chemical Level of Organization Basic Chemistry Flashcards
1
Q
Element
A
Simplest form of matter that has unique chemical characteristics.
2
Q
Atomic Number
A
The number of protons in its nucleus.
3
Q
Major Elements
A
Account for 98.5% of body weight, those being: Oxygen, Carbon, Hydrogen, Nitrogen, calcium, Phosphorus.
4
Q
Inorganic Elements
A
Are extracted from the soil by plants and are passed to humans and other organisms in the food chain.
5
Q
Atomic Mass
A
Protons + Neutrons = Atomic Mass
6
Q
Nucleus
A
The center of an atom which consists of protons and neutrons.
7
Q
Electrons
A
Determines the behavior…
8
Q
Isotopes
A
The variation in an atom of an element.
9
Q
Atomic Weight
A
Average weight of isotopes of an element divided by the amount of isotopes.
