GCSE Chemistry - What is Ionic Bonding? How Does Ionic Bonding Work? Ionic Bonds Explained #14

The video tutorial explains how particles bond through ionic bonds, using dot and cross diagrams. It begins with a recap of ions, formed when atoms lose or gain electrons, and illustrates this with sodium and chlorine. The tutorial describes electron transfer, resulting in ions with full outer shells, and the formation of ionic compounds through electrostatic attraction. It introduces dot and cross diagrams to represent these bonds, highlighting key features. Finally, it provides a detailed example of magnesium chloride formation, emphasizing the arrangement of ions in a compound.

What happens to a sodium atom when it becomes a sodium ion?

• It gains an electron.

• It loses an electron.

• It gains a proton.

• It loses a neutron.

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

• Magnetic force

• Nuclear force

• Gravitational force

• Electrostatic force

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

• Ions and molecules

• Atoms and compounds

• Electrons from different atoms

• Protons and neutrons

How many chloride ions are needed to balance the charge of one magnesium ion in magnesium chloride?

• Four

• Three

• Two

• One

What is the charge on a magnesium ion after it loses two electrons?

• 1-

• 1+

• 2+

• 2-