Understanding Ionic Bonds and Dot and Cross Diagrams

What happens to a sodium atom when it forms an ion?

• It gains an electron to become stable.

• It shares an electron with another atom.

• It loses an electron to become stable.

• It remains unchanged.

What is the main force that holds ions together in an ionic compound?

• Magnetic force

• Gravitational force

• Electrostatic force

• Nuclear force

In a dot and cross diagram, what do the dots and crosses represent?

• Protons and neutrons

• Different types of atoms

• Electrons from different atoms

• Molecules and compounds

How many electrons does magnesium lose to form an ionic bond with chlorine in MgCl2?

• Three electrons

• Two electrons

• Four electrons

• One electron

In the formation of MgCl2, how are the chloride ions arranged around the magnesium ion?

• Both on the same side

• On opposite sides

• Randomly scattered

• In a linear arrangement