week 1

Question 1

Discovered the idea about the positively charged particle called “PROTON”

Answer 1

Eugen Goldstein

Question 2

He is a Greek philosopher who began to search for a description of matter.

Answer 2

Democritus

Question 3

(English Chemist) performed a number of experiments that eventually led to the acceptance of the idea of atoms.

Answer 3

John Dalton

Question 4

an English Scientist, provided the first hint that an atom is made of even smaller particles.

Answer 4

J.j. Thomson

Question 5

Introduced the idea about the negatively charged particle called “electron

Answer 5

j.j. Thomson

Question 6

He proposed a model of the atom that is sometimes called “Plum Pudding” Mode

Answer 6

j.j. thomson

Question 7

an English Physicist, was hand at work on an experiment.

Answer 7

Ernest Rutherford

Question 8

Danish Scientist, proposed an improvement.

Answer 8

Niels Bohr

Question 9

brilliant German Physicist, modified Niels Bohr’s atomic theory to include elliptical orbits.

Answer 9

arnold sommerfeld

Question 10

a Physicist and a Biologist, was considered the Father of Quantum Mechanics.
Today’s atomic model is based on the principles of wa

Answer 10

erwin Schrodinger

Question 11

Proposed that the electron (which is thought of as a particle) could also be thought of as a wave

Answer 11

Louie de Broglie

Question 12

Discovered that for a very small particle like the electron, its location cannot be exactly known and how it is moving. This is called UNCERTAINTY PRINCIPE

Answer 12

Werner Karl Heisenberg

Question 13

you can’t locate the exact position of an electron at any given time (too small, too fast)

Answer 13

uncertainty principle