Atomic theory | Baamboozle - Baamboozle | The Most Fun Classroom Games!

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11. The modern model shows electrons moving in a ___ a) fixed path b) cloudlike region c) ring d) sphere

b

23. Which model suggested electrons are scattered inside a positive sphere a) Rutherford’s b) Dalton’s c) Thomson’s d) Bohr’s

c

28. The term for the sum of protons and neutrons is ___ a) atomic number b) mass number c) charge number d) isotope number

b

17. The particle with the least mass is the ___ a) proton b) neutron c) electron d) nucleus

c

1. The smallest particle that can still be considered an element is the ___ a) molecule b) atom c) cell d) proton

b

30. Atomic theory developed through ___ a) guessing b) observation only c) experimental evidence d) imagination

c

7. The proton has a ___ charge a) positive b) negative c) neutral d) mixed

a

24. Who said atoms are mostly empty space a) Bohr b) Rutherford c) Dalton d) Thomson

b

21. Atoms of the same element with different neutrons are called ___ a) ions b) isotopes c) elements d) mixtures

b

14. The nucleus is ___ a) negative b) neutral c) positive d) empty

c

13. Who discovered the neutron a) Bohr b) Dalton c) James Chadwick d) Thomson

c

25. In Bohr’s model electrons move around the nucleus in ___ a) paths or orbits b) random clouds c) shells d) energy waves

a

5. Rutherford’s experiment led to the discovery of the ___ a) neutron b) proton c) nucleus d) electron

c

8. The electron has a ___ charge a) positive b) negative c) neutral d) double

b

27. The modern atom model shows electrons in ___ a) shells only b) orbits c) energy levels d) a cloud region

d

22. What do all isotopes of carbon have in common a) 6 neutrons b) 6 protons c) same mass d) 12 neutrons

b

18. Which particle determines the identity of an element a) neutron b) electron c) proton d) nucleus

c

26. The cloud model suggests electrons move ___ a) slowly b) randomly and rapidly c) in straight lines d) in layers

b

20. The mass number equals ___ a) protons only b) neutrons only c) protons and neutrons d) electrons and protons

c

16. Which two particles have about the same mass a) proton and electron b) proton and neutron c) electron and neutron d) atom and proton

b

29. Subatomic particles include ___ a) protons neutrons and electrons b) molecules c) atoms d) cells

a

3. Who discovered the electron a) Rutherford b) Thomson c) Bohr d) Dalton

b

19. The atomic number equals the number of ___ a) protons b) neutrons c) electrons and neutrons d) protons and neutrons

a

10. Bohr’s model described electrons moving ___ a) randomly b) in specific orbits c) in straight lines d) only inside the nucleus

b

15. Protons and neutrons are found in the ___ a) electron cloud b) nucleus c) orbit d) shell

b

2. Dalton thought atoms were ___ a) charged b) smooth and hard balls c) soft d) made of energy

b

9. The neutron has ___ charge a) positive b) negative c) no d) both

c

12. Who discovered the nucleus a) Dalton b) Rutherford c) Bohr d) Thomson

b

4. Thomson’s model is also known as the ___ a) planetary model b) nuclear model c) plum pudding model d) orbit model

c

6. What is found in the center of the atom a) nucleus b) electron cloud c) neutron d) proton

a