Week 11 Presentation (Ionic Bonds)

Multiple Choice

Which of the following is a likely outcome when an atom gains or loses electrons?

• It becomes an ion

• It remains unchanged

• It forms a covalent bond

• It evaporates

Multiple Choice

Which vocabulary term describes the outermost electrons of an atom?

• Valence electron

• Ionic bond

• Cation

• Ionization

Multiple Choice

Which of the following statements about ionic bonds is correct?

• Ionic bonds involve the transfer of valence electrons from a metal to a nonmetal.

• Ionic bonds involve the sharing of valence electrons between two nonmetals.

• Ionic bonds form only between nonmetals.

• Ionic bonds do not involve valence electrons.

Multiple Choice

What happens to the number of protons and electrons in a nonmetal atom when it forms an anion?

• The number of electrons increases while the number of protons stays the same.

• The number of protons increases while the number of electrons stays the same.

• Both the number of protons and electrons increase.

• Both the number of protons and electrons decrease.

Open Ended

Describe the process by which a chlorine atom becomes a negatively charged ion (anion).

Multiple Choice

What happens to the charge of a metal atom when it loses electrons to form a compound?

• It becomes negatively charged

• It remains neutral

• It becomes positively charged

• It splits into two atoms

Multiple Choice

Which of the following statements about the transfer of electrons between sodium and chlorine is correct?

• Both atoms lose electrons and become stable.

• Sodium loses an electron and chlorine gains an electron, making both stable.

• Chlorine loses an electron and sodium gains an electron, making both stable.

• Both atoms gain electrons and become unstable.

Multiple Choice

Which process leads to the formation of an ionic bond between sodium and chlorine atoms?

• Sharing of electrons between sodium and chlorine

• Transfer of electrons from sodium to chlorine

• Loss of electrons by chlorine

• Gain of electrons by sodium

Multiple Select

Select all the properties that are characteristic of ionic compounds.

• Usually solid and brittle

• Low melting and boiling points

• High melting and boiling points

• Good conductors of electricity in molten or aqueous (dissolved in water) state

Multiple Choice

Which of the following statements correctly describes the behavior of ionic compounds in water?

• Ionic compounds do not dissolve in water.

• Ionic compounds dissolve in water and their ions remain fixed in place.

• Ionic compounds dissolve in water and their ions separate and move freely.

• Ionic compounds dissolve in water but do not conduct electricity.

Multiple Choice

Which group in the periodic table will gain 2 electrons and become negative (-2) ions?

• Group 15

• Group 16

• Group 17

• Group 18

Multiple Choice

Which of the following statements best explains why it is harder to ionize elements on the right side of a period compared to the left?

• They have fewer electron shells.

• They have more protons, increasing nuclear attraction.

• They have larger atomic radii.

• They have lower ionization energy.

Multiple Choice

Ionic bonds are formed between which types of elements?

• Metals and nonmetals

• Metals and metals

• Nonmetals and nonmetals

• Noble gases and halogens