Atom Flashcards
1
Q
What is Crooks famous for?
A
Discovers that cathode ray tubes consist of particles
2
Q
J.J Thompson is famous for?
A
Disc. particles in cathode ray tube are NEGATIVELY charged and have the same CHARGE 2 MASS ratio no matter the cathode material.
3
Q
Who is Milikan?
A
Scientist who found that ALL E- have the same fundamental charge
4
Q
What is Rutherford famous for?
A
Created nuclear model of atom.
Proved atoms have small, dense, pos+ charged nucleus.
DISCOVERED PROTONSSSSSSSSS
5
Q
Bohr model shows…
A
1) Nucleus consists of p+ and n. E- travel around NUCLEUS in fixed orbits.
6
Q
How do E- gain or lose nrg?
A
change orbits
