Atomic Structure

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1. What does the Nucleus contain?
Protons and Neutrons
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2. What charge do the Electrons have?
Negative
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3. What are Isotopes?
Isotopes are atoms with different numbers of neutrons
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4. In an atom the number of electrons is equal to the number of _______ ?
Protons
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5. How are charged ions formed?
By atoms losing or gaining electrons
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6. What is the atomic number?
The total number of protons in an atom
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7. What is the mass number?
The total number of protons and neutrons in an atom
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8. What are two common isotopes of carbon?
Carbon-12 and Carbon-14 (Carbon-14 has 2 more neutrons)
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9. What makes up most of the mass of the atom?
The Nucleus
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10. What takes up the most space in the atom?
The Electrons
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11. What is the relative charge of a Proton?
Positive
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12. What is the relative charge of a Neutron?
Neutral
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13. What is the relative charge of a Electron?
Negative
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14. If an atom gains one or more electrons it becomes a _________ charged ion
Negatively
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15. If an atom loses one or more electrons it becomes a _________ charged ion
Positively
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16. What was an early model of the structure of the atom called?
The Plum Pudding Model
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17. What experiment helped prove the PPM was wrong?
Rutherford''s scattering experiment
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Card 2

Front

2. What charge do the Electrons have?

Back

Negative

Card 3

Front

3. What are Isotopes?

Back

Preview of the front of card 3

Card 4

Front

4. In an atom the number of electrons is equal to the number of _______ ?

Back

Preview of the front of card 4

Card 5

Front

5. How are charged ions formed?

Back

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