1 (The Particle Theory of Matter) Flashcards
Proton
relative charge AND relative mass
+1 (charge)
AND
1 (mass)
Neutron
relative charge relative mass
0 (charge)
AND
1 (mass)
Electron
relative charge relative mass
-1 (charge)
AND
1/2000 (mass)
Location of proton
Nucleus
Location of neutron
Nucleus
Location of electron
Orbitals/energy levels
The smallest whole unit of matter is the atom. An atom is a specific type of particle. Each atom is made up of three smaller sub-units or ___________ ___________
sub-atomic particles
To find the sub-atomic particles and therefore the type of atom, you must use ____________
the Periodic Table
Atomic mass is the __________________
mass of the atom
The mass of an atom is made up of number of ___________ and the number of __________ ONLY
protons,
neutrons
___________ are NOT connected to mass, too small
Electrons
Number of Protons =
Atomic Number
Number of Electrons =
Number of Protons
Number of Neutrons =
Atomic Mass - Atomic number
Order (Top-Bottom) of an element
- Atomic Number
- Symbol
- Atomic Mass