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- 1. Multiple Choice
Which best summarizes the subatomic particles and their electrical charge?
Proton= Positive
Neutron= Negative
Electron= No charge
Proton = Negative
Neutron= Positive
Electron= No charge
Proton= Positive
Neutron= No charge
Electron=Negative
Proton= No charge
Neutron= Negative
Electron=Positive
- 2. Multiple Choice
What best describes the relationship between masses of subatomic particles?
Protons have the same mass as electrons.
Protons have less mass than neutrons.
Neutrons have less mass than electrons.
Protons have almost the same mass as neutrons.
- 3. Multiple Choice
Which two letters represent the nucleus?
a & b
a & c
b & c
none
- 4. Fill in the Blank
The element represented by the model is named_________________________. You can identify it because of the number of ___________________________ in this model.
- 5. Fill in the Blank
In this atom of Chlorine there are _______ protons, ________ electrons and ____________neutrons.
- 6. Multiple Choice
How many electrons can the first energy level hold?
2
8
16
32
- 7. Multiple Choice
Which of the following elements contains the greatest amount of protons?
Lithium
Oxygen
Calcium
Hydrogen
- 8. Multiple Choice
Which of the following elements contains the least amount of electrons?
Aluminum
Fluorine
Calcium
Nitrogen
- 9. Multiple Choice
What is correct about electrons?
Are negatively charged subparticles found in the electron cloud
Are positively charged subparticles found in energy levels
Are subparticles with no charge found in the electron cloud.
Are negatively charged particles found in the nucleus.
- 10. Multiple Choice
Which atom is represented by 10 protons, 10 neutrons, and 10 electrons.
Sodium
Neon
Oxygen
Carbon
- 11. Multiple Choice
Which element does the above model represent?
Hydrogen
Boron
Calcium
Lithium
- 12. Fill in the Blank
Name this image.
- 13. Multiple Choice
Isotopes
Have the same chemical properties because they have the same number of electrons.
Have the same physical properties because they have the same mass.
Are atoms of different elements that have the same number of neutrons.
None
- 14. Fill in the Blank
Isotopes are atoms of the same ______________________, that have different number of ______________________, thus a different atomic ________________.
- 15. Fill in the Blank
If an Isotope has an unstable nucleus it is called a _____________________
- 16. Fill in the Blank
Name three uses for radioactive isotopes.
- 17. Multiple Choice
A student cuts a piece of gold wire into the smallest possible pieces. Which statement best describes the smallest piece of gold wire?
The gold changes properties and becomes a new element.
The chemical properties of the gold change as the wire is cut.
The smallest piece of wire is no longer gold.
The wire is still gold and has become an atom of gold.
- 18. Multiple Choice
What is an AMU?
Atomic multiple unit
Atomic mass unit
American mass unit
None
- 19. Fill in the Blank
An AMU is equal to 1/12 the mass of a _____________________-12 atom and it is 1.67377 x 10-24 of a ______________________.
- 20. Fill in the Blank
This is an image of the ____________________ gland. This person has been diagnosed with a cancer using a ____________________________ of the element_________________.
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