Biology Terms Flashcards
1
Q
Atom
A
Basic unit of an element
2
Q
Element
A
a substance that cannot be broken down
3
Q
Proton
A
a subatomic particle with a positive charge
4
Q
Electron
A
A subatomic particle with a negative charge
5
Q
Periodic Table
A
Organizes all known elements
6
Q
Atomic Number
A
the number of protons in an atom
7
Q
Neutron
A
a subatomic particle with no electric charge
8
Q
Ion
A
an atom that has a positive or negative charge
9
Q
Isotopes
A
different forms of the same element with equal protons yet different neutrons
10
Q
Mass Number
A
total number of protons and neutrons in an atoms nucleus
11
Q
Polarity
A
the separation of an electric charge in a molecule
12
Q
A
