Definition Bank, Unit 1, The Atom Flashcards
1
Q
Energy Levels
A
the fixed energy values that electrons in an atom may have
2
Q
Quatisiation of Energy
A
Electrons in an atom can only have fixed values not random ones
3
Q
Ground State
A
One in which the lowest avialble energy levels are occupied
4
Q
Excited state
A
one in which electrons in an atom occupy higher energy levels than those avaible in the ground state
5
Q
Heisenberg Uncertinty Principle
A
the location and speed of an electron cannot be calculated at the same time
6
Q
Orbital
A
A region in space where it is very likely to find an electron
7
Q
Sublevel
A
a subdivsion of a main energy level and consists of one or two orbitals of the same energy
8
Q
AAS
A
Atomic Absorbtion Spectrometry
9
Q
principles of AAS
A
- Atoms of an elemnt in the ground state absorb light of a particular wave lenght, that is characterist of that element
- amount of light absorbed is directly proportional to the concentration of the element in the sample
