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Ions

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Ions Answer Key

1. 
What is an ion?
  • an atom or molecule with an electrical charge
 
2. 
Define cation.
  • positive ion
3. 
Define anion.
  • negative ion
 
4. 
The process of losing or gaining electrons to form positive or negative ions is called
  1. electrolysis.
  2. ionization.
  3. cathode.
  4. anode.
5. 
                             are charged particles formed when ionic compounds dissolve in water.
  1. electrons
  2. solvents
  3. electrolytes
  4. ions
  5. all of the above are correct
 
6. 
The charge on an ion is the same as the                  of that ion.
  1. binary compound
  2. oxidation number
  3. polyatomic ion
  4. hydrate
7. 
A(n)                 is an ion containing more than one element.
  1. oxidation number
  2. binary compound
  3. polyatomic ion
  4. hydrate
 
8. 
An ion of the element carbon has a different number of                 .
  1. protons
  2. electrons
  3. neutrons
  4. all of the above
9. 
What type of ion forms when an atom loses electrons?
  1. Neutral
  2. Positive
  3. Negative
  4. Possible positive or negative
 
10. 
What is the atomic number of an ion with 5 protons, 6 neutrons, and a charge of 3+?
  1. 5
  2. 11
  3. 6
  4. 4.5
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