Atomic Structure Flashcards
Atomic Structure: The Atom
What are the Subatomic Particles?
- Protons
- Electrons
- Neutrons
Atomic Structure: The Atom
What is the Relative Mass of a Proton?
1
Atomic Structure: The Atom
What is the Relative Charge of a Proton?
+1
Atomic Structure: The Atom
What is the Relative Mass of an Electron?
0
Atomic Structure: The Atom
What is the Relative Charge of an Electron?
-1
Atomic Structure: The Atom
What is the Relative Mass of a Neutron?
1
Atomic Structure: The Atom
What is the Relative Charge of a Neutron?
0
Atomic Structure: The Atom
Which one’s greather Atomic number or Mass number?
Mass number
Atomic Structure: The Atom
What is the Atomic Number?
Proton number
Atomic Structure: The Atom
What is the Mass Number?
Total number of protons & neutrons
Atomic Structure: Isotopes
What is an Isotope?
Atoms with the same atomic number but different mass number
Atomic Structure: Isotopes
Which properties do Isotopes share?
Chemical
↳ have the same electron configuration
Atomic Structure: Isotopes
Which properties in Isotopes differ?
Physical
↳ depend on its mass
Atomic Structure: Relative Mass
What is the Relative Atomic Mass?
Average mass of an atom compared to 1/12 of carbon 12
Atomic Structure: Relative Mass
What is the Relative Isotopic Mass?
Average mass of an isotope compared to 1/12 of carbon 12
Atomic Structure: Relative Mass
What is meant by the term ‘Abundance’?
How much
Atomic Structure: Relative Mass
How would you workout the Ar from Isotopic Abundances?
- Multiply each relative isotopic mass by its % relative isotopic abundance
- Add them up
- Divide by 100
Atomic Structure: Mass Spectra
What does the Mass Spectra show?
- Relative Isotopic Masses
- Abundances of diff elements
Atomic Structure: Mass Spectra
What does the y-axis show?
The abundance of ions
Often as %
Atomic Structure: Mass Spectra
What does the Height of the peak show?
Relative Isotopic Abundance
Atomic Structure: Mass Spectra
What does the x-axis show?
m/z or the Relative Isotopic Mass