Assessment
Directions: Write the letter of the correct answer on the space provided.
1. The scientist who believes that all matter is made up of tiny, indivisible
particles,
A Niels Bohr
C. JJ Thomson
B Democritus
D. Ernest Rutherford
2. He developed and proposed the atomic theory of matter,
A Niels Bohr
C. John Dalton
B. Democritus
D, JJ Thomson
3. Based on the gold foil experiment of E. Rutherford, the nucleus of an atom
consists of
A. proton only
C. proton and electron
B, proton and neutron
D. neutron and electron
4. He is the scientist discovered the electron by his studies of magnetic and
electric fields on Cathode rays.
A John Dalton
C, Ernest Rutherford
B, JJ Thomson
D. Werner Heisenberg
5. The scientists who proposed the probability that electrons will be found in
a certain location around the nucleus of an atom.
C.
A. Neil Bohr
Ernest Rutherford
D
B. J.J Thomson
Erwin Schrodinger