Chemistry, Chapter 7, Ionic & Metallic Bonding, Review

How many valence electrons does aluminum have?

• 13
• 14
• 3
• 4

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How many dots should be placed around silicone in a lewis dot structure?

• 3
• 4
• 13
• 14

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Magnesium's ion

• Mg⁺
• Mg²⁺
• Mg^-
• Mg^2-

Rubidium (Rb) will likely _________ to reach a noble gas configuration.

• gain one electron
• gain two electrons
• lose two electrons
• lose one electron

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Why do ions form?

• Because electrons are repelled by the nucleus.
• Because the number of protons changes in the nucleus
• Because it is more stable for elements to have noble gas configurations.
• Because electrons degrade over time.

An element forms an ion with a 2- charge. This means that 2 electrons were __________.

• Gained
• Lost
• Shared
• Destroyed

An element always forms a cation with a 2+ charge. How many valence electrons did it have before it ionized?

• 6
• 1
• 2
• 5

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What is the electric charge of all ionic compounds?

• 0
• +1
• +2
• +3

When magnesium and chlorine react, they form an ionic compound. What is the charge of the ionic compound?

• +1
• +2
• -3
• 0

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What salt forms when calcium and chlorine react? 

• CaCl
• Ca₂Cl
• CaCl₂
• CaCl₃

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