Quiz 11 Notes (Exam 4) Flashcards
What is the Nernst Equation used for?
It is used for non-standard condition
What is the Nernst equation?
*Ecell=Ecell(standard) - 0.0592v divided by n times log Q
What is being described?:
Cell reaction must be driven by imposing by a cell voltage
Electrolytes (Electrolytic cell)
What two things make up a nucleus?
Protons and Neutrons
What defines an element?
Protons
What does A represent in nuclear structure notation?
Mass number
What does mass number consist of?
Number of protons
What does Z represent in nuclear structure notation?
Atomic number
What does the atomic number consist of?
Sum of protons and neutrons (number can differ, creating isotopes)
What is being described?:
High energy helium nuclei?
Alpha particle
What is being described?:
High energy electron
Beta particle
What is being described?:
Same mass as electrons but postive charge
Positron
What is being described?:
hydrogen nuclei
Proton
What is being described?:
very high energy EM radiation
Gamma ray
Which type of decay has a parent and daughter nuclide?
Alpha decay
Which type of decay is the conversion of a neutron to a proton?
Beta decay
Which emission is being described?:
The nuclide forms in an excited state; then decays to ground state
Gamma Emission
Which emission is being described?:
Proton is converted into a neutron
Positron emission
What is being described?:
Internal process where inner electrons combines with proton; outer electrons fill vacancy left; energy emitted (x-ray)
Electron capture
What is a fundamental force of physics?
- In all nucleons (protons and neutrons)
- Attracted to each other
- Acts over very small distances
Strong force
What is a balance between the coloumbic (charge) repulsive force and attractive strong force?
Stability
What does n over z equal for elements 1-20?
1
What does n over z equal for elements 20-40?
1.25
What does n over z equal for elements 40-80?
1.5
