Chemical Bonding Review

Which of the following has eight electrons in its valence shell?

• Oxygen

• Neon

• Barium

• Carbon

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Elements on the LEFT side of the periodic table will most likely form:

• Positive ions
• Negative ions
• Neutral Ions
• None of these

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Which type of bond has a transfer of an electron from on atom to another?

• Polar Covalent 
• Non Polar Covalent
• Ionic
• Metallic

Chemical bonds form when atoms

• combined nuclei
• give up neutrons
• gain protons
• share or transfer electrons

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If an atom loses two electrons what charge will it have?

• + 2
•  - 2
• +1
• -1

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If an atom gains one electron what charge will it have?

• -2
• -1
• +1

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Covalent compounds

• Share electrons

• transfer electrons

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What is the number of valence electrons for Oxygen?

• 8
• 6
• 2
• 1

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How many valence electrons in this structure?

• 6
• 5
• 4
• 7

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Typically, atoms are more stable when they are

• bonded together

• apart from each other

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