Principles Of Chemistry Flashcards
What are the 3 subatomic particles?
-Proton
-Neutron
-Electron
Relative mass of Proton
1
Relative mass of Neutron
1
Relative mass of Electron
0
John Dalton’s atomic theory
Solid ball theory
J.J Thompson atomic theory
Plum pudding model
Ernest Rutherford atomic theory
Alpha particles experiment
How to calculate relative atomic mass
- Identify mass numbers
- Identify % abundance of each isotope
- Multiply mass and abundance of each isotope
- Add them together
Valence electrons (definition)
Electrons on the outer shell
Electronic configuration (definition)
The way in which electrons are arranged in an atom
Melting (definition)
Solid to liquid
Freezing (definition)
Liquid to solid
Sublimation (definition)
Solid to gas
Deposition (definition)
Gas to solid
Condensation (definition)
Gas to liquid
Boiling (definition)
Liquid to gas
Polymer (definition)
A long chain of chemical units/ monomers
Rf value (equation)
Solvent front/ spot distance
Stationary phase (definition)
The phase in chromatography that doesn’t move
Mobile phase (definition)
The phase in chromatography that moves
Potable water (definition)
Water that is safe to drink
Screening (definition)
Large insoluble solids are removed with a sieve
Sedimentation (definition)
Small, insoluble particles are allowed to separate out
Filtration (definition)
Sand and gravel beds remove insoluble solids
