Chapter 3.1 - 'Behaviour Of Charged Particles' Flashcards
State what a ‘nucleus’ contains.
Protons and neurons.
Surrounded by electrons.
State what an ‘electron cloud’ is drawn for.
As the exact location of a electron can not be pinpointed, it is used to describe the most probable location of where electrons travel around.
State under what circumstance a ‘net charge’ is gained.
State when a ‘net negative charge’ is gained.
When a electron moves from on object to another.
When an object gains an electron.
Define what an ‘ion’ is.
An atom or molecule with a net charge due to the loss or gain of one or more electrons.
Define ‘elementary charge’.
State the symbol.
The electric charge carried by a single proton or electron.
e
State the SI unit of charge.
State the symbol.
Coulomb.
C
State the equivalent of 1 coulomb to protons.
State the equivalent of 1 coulomb to electrons.
- 2 x 10^18
- 6.2 x 10^18
State the charge on a proton.
State the charge on a electron.
- 6 x 10^-19
- 1.6 x 10^-19
Explain how electrons flow.
Why are metals good conductors of electricity?
Why are non metals bad conductors? (insulators)
Electrons effectively jump from one atom to another.
Their are electrons are loosely bonded, allowing more free flowing electrons.
Non metals have very tightly bonded electrons so forth not allowing readily movement from one atom to another.
Give an example of a ‘semiconductor’.
Silicon.
