Name________________________
Basics of Chemistry Review
Atoms, Elements, Ions and Isotopes
1. What determines the mass of an atom?
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2. What condition makes a nucleus stable?
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3. What determines an element’s name?
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4. What is the condition that makes an atom neutral?
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5. What makes something an ion?
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6. How do you make two isotopes of the same element?
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7. What is the other thing that changes when you have an isotope of the same element?
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Please label the symbol from the Periodic Chart of the Elements. Then on the lines on the next page write how
each thing is determined.
14
0
C
6
1. _________________________________________________________________________
2. _________________________________________________________________________
3. _________________________________________________________________________
4. _________________________________________________________________________
Create your own symbol for an ion of sodium. Include the information from above.
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Protons _________________
Neutrons_____________________
Electrons ____________________
Explain why it is an ion.
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Changes in Matter
Draw and explain the difference in particles of solids, liquids and gases.
Solids
Liquids
Gases
Density_____________________
Density_____________________
Density_____________________
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Movement___________________
Movement___________________
Movement___________________
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What happens to the particles with changes in the temperature? ____________________________________
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What happens to the particles with changes in the pressure? _______________________________________
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