Pretest

Question 1

Iodine and potassium form an ionic bond. Iodine has seven electrons in its outer shell, and potassium has one electron in its outer shell. Which conclusion is best supported by this information?

Revolt · Accepted Answer

Iodine becomes an ion with a negative 1 charge.

Question 2

Which two elements will most likely form an ionic bond? (Click on the periodic table icon to view these elements)

Revolt · Accepted Answer

magnesium and bromine

Question 3

Ionic compounds form

Revolt · Accepted Answer

crystal structures.

Question 4

Which shows the correct order of steps during the formation of an ionic bond?

Revolt · Accepted Answer

Electrons are transferred right arrow Ions form right arrow Ions are attracted to each other

Question 5

Which atom is most likely to accept electrons to form an ionic bond?

Revolt · Accepted Answer

sulfur, a nonmetal with 6 valence electrons

Question 6

Refer to the periodic table in the Student Tools to answer the question. What will most likely occur if sulfur forms an ionic bond with another element?

Revolt · Accepted Answer

Sulfur will accept electrons.

Question 7

Which is an example of a polyatomic ion?

Revolt · Accepted Answer

CO sub 3 raised to the negative power

Question 8

Chalk is an ionic compound. Which is a property of all ionic compounds that makes chalk particularly useful for writing on a chalkboard?

Revolt · Accepted Answer

hardness and brittleness

Question 9

Which characteristic(s) makes ionic compounds useful as a building material?

Revolt · Accepted Answer

hardness and brittleness

Pretest Answers

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