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Valence Electrons and Ions Practice

You will need a Periodic Table for these practice questions.

1. What is the symbol of a oxygen ion?

$O^{-}$

$O^{2+}$

$O^{0}$

$O^{2-}$

$O^{3+}$

Question 1 of 12

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2. What is the symbol of a boron ion?

$B^{3+}$

$B^{2-}$

$B^{2+}$

$B^{-}$

$B^{ }$

Question 2 of 12

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3. What is the symbol of a calcium ion?

$Ca^{-}$

$Ca^{2-}$

$Ca^{2+}$

$Ca^{3-}$

$Ca^{+}$

Question 3 of 12

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4. What is the symbol for a beryllium ion?

$Be^{3+}$

$Be$

$Be^{2+}$

$Be^{-}$

$Be^{0}$

Question 4 of 12

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5. How many occupied electron shells does astatine have?

2

1

6

7

5

Question 5 of 12

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6. How many occupied electron shells does Plutonium have?

6

7

4

3

2

Question 6 of 12

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7. How many occupied electron shells does tungsten have?

1

7

4

2

6

Question 7 of 12

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8. How many occupied electron shells does silver have?

5

6

7

3

2

Question 8 of 12

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9. How many valence electrons does a neutral atom of germanium have?

1

7

3

4

6

Question 9 of 12

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10. How many valence electrons does a neutral atom of tellurium have?

6

2

7

1

3

Question 10 of 12

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11. How many valence electrons does a neutral atom of bismuth have?

2

5

7

4

1

Question 11 of 12

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12. How many valence electrons does a neutral atom of helium have?

3

2

8

1

6

Question 12 of 12

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