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Atomic History
Question 21 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
What were Ernest Rutherford's three contributions to atomic theory?
Discovered that the atom is mostly empty space | |
correctchoice Discovered the nucleus- did the gold foil experiment | |
Used the cathode ray tube in his discovery | |
correctchoice Discovered that the proton had a positive charge |
Question 22 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Who was the first contributor to the atomic theory?
John Dalton | |
Ernest Rutherford | |
JJ Thompson | |
Democritus |
Question 23 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Which scientist was the the most recent contributor to the atomic theory?
John Dalton | |
Ernest Rutherford | |
JJ Thomson | |
Neils Bohr |
Question 24 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
What is Neils Bohr's contribution to the atomic theory?
Created the atomic theory | |
Created a model of the atom with electrons moving around the nucleus in a fixed orbits | |
Discovered that the proton had a positive charge | |
Believed that atoms of a given element are identical |
Question 25 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Democritus believed that the smallest particles, were atomos, the Greek word for
small | |
uncut or indivisible | |
basic |
There are 25 questions to complete.