Vocabulary
The control center for the cell
Nucleus
Mass Number
the total number of protons and neutrons in a nucleus.
Cation
a positively charged ion,
Electron
particle with a charge of negative electricity
Isotope
two or more forms of the same element
Photon
a particle representing a quantum of light
Atomic Number
A number that represents a variable
Unified atomic mass unit
a standard unit of mass that quantifies mass
Valence Electron
an outer shell electron
Proton
A particle with a positive electric charge.
Mole
The mass of substance containing the same number of fundamental units
Anion
a negatively charged ion
Neutron
A particle with no electric charge
Orbital
a region surrounding an atomic nucleus