True or False? John Dalton believed that moving electrons exist in electron clouds around the nucleus.
False
True
3. Multiple Choice
30 seconds
1 pt
What was the name of J.J Thomsons' model of atomic structure.
Electron Cloud Model
Electron Sea Model
Plum Pudding Model
Bohr Model
4. Multiple Choice
30 seconds
1 pt
Who proposed the idea that electrons are not fixed but constantly move?
Dalton
Bohr
Schrodinger
Chadwick
5. Multiple Choice
30 seconds
1 pt
What was James Chadwicks most notable discovery?
The nucleus contains protons.
The nucleus contains neutrons.
Electron are not fixed.
Protons are positive.
6. Multiple Choice
30 seconds
1 pt
What does the Bohr model suggest?
Atoms are small, hard, indivisible objects.
That protons in the nucleus are attracted to electrons in the electron clouds.
That electrons travel around the nucleus of an atom in orbits or definite paths.
7. Multiple Choice
30 seconds
1 pt
Was John Daltons theory earlier than Niels Bohr?
No
Yes
8. Multiple Choice
45 seconds
1 pt
Who proposed that the atom consists mostly of empty space?
Bohr
Dalton
Rutherford
Chadwick
9. Multiple Choice
30 seconds
1 pt
Which name is incorrect?
Ernest Rutherford
Niels Bohr
James Dolton
J.J Thomson
10. Multiple Choice
30 seconds
1 pt
Which model suggested that: Atoms mostly consist of positively charged material with negatively charged particles (electrons) located throughout the positive material.