Chemical Bonding Review

Which of the following could NOT form an ionic compound? Check all that apply.

• Li⁺ and Cl^-

• F^- and O^2-

• Ba²⁺ and Ag⁺

• Mg²⁺ and S^2-

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Which of the following could form an ionic compound? Check all that apply.

• Na⁺ and F^-

• S^2- and O^2-

• Ca²⁺ and Fe³⁺

• Mg²⁺ and Cl^-

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NGSS.HS-PS1-2

In an ionic bond, the ions are held together because...

• the positive nucleus of each ion attracts the other ion's negatively charged electrons

• the ions have opposite charges

• as the electron moved from one atom to another it pulled the atom along with it

• electrons are being shared

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Which of the following pairs of elements could NOT react to form an ionic compound?

• Carbon and Oxygen

• Potassium and Fluorine

• Silver and Oxygen

• Aluminum and Chlorine

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Calcium Fluoride has a chemical formula of CaF₂. What does the chemical formula tell you?

• There are 2 Calcium ions for every 1 Fluoride ion in the crystal

• There is 1 Calcium ion for every 2 Fluoride ions in the crystal

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Ionic bonds are formed between...

• Non - metals

• A metal and a non-metal

• Metals

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How is an ionic bond formed?

• Sharing of electrons

• Delocalised electrons

• Transfer of electrons

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Which of the below is an ionic compounds?

• Ni

• MgCl₂

• H₂O

• CH₄

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An example of an ionic compound is Sodium Chloride, which is made from Na⁺ and Cl^- ions. Why do these ions form an ionic bond?

• They have like charges

• They are from the same group

• They are from the same period

• They have opposite charges

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NGSS.HS-PS1-2

Lithium is in group 1 of the periodic table, which ion would it form?

• Li^-

• Li^2-

• Li⁺

• Li²⁺

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NGSS.HS-PS1-1

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