Unit 1 Section 1 Atomic Structure Flashcards
1
Q
What was Daltons model of the atom?
A
“solid spheres”
2
Q
What was Thompsons model of the atom?
A
Smaller negatively charged particles embedded in a positive sphere
3
Q
What were the conclusions of the alpha scattering experiment?
A
Atoms are mostly empty space
Tiny positively charged nucleus
Cloud of negative electrons surrounding it
4
Q
Bohrs model
A
Electrons exist in fixed orbits
Each shell has a fixed energy
Em radiation is emitted or absorbed when moving between shells
5
Q
What are the 4 things that occur in a mass spectrometer?
A
Ionisation
Acceleration
Ion Drift
Detection
