Understanding Strontium Fluoride and Ionic Compounds

The video tutorial explores whether strontium fluoride (SrF2) is ionic or covalent. It begins by identifying strontium as a metal and fluorine as a non-metal on the periodic table, suggesting an ionic bond. The video further confirms this by calculating the electronegativity difference between strontium (0.95) and fluorine (3.98), which is greater than 2.0, indicating an ionic compound. Dr. B concludes that SrF2 is indeed ionic.

What type of compound is strontium fluoride (SrF2)?

• Ionic

• Polar

• Covalent

• Metallic

Which elements make up strontium fluoride?

• Calcium and Fluorine

• Strontium and Chlorine

• Sodium and Fluorine

• Strontium and Fluorine

What is the general rule for determining if a compound is ionic?

• It contains two non-metals

• It contains a metal and a non-metal

• It contains a noble gas

• It contains two metals

What is the electronegativity of strontium?

• 3.98

• 0.95

• 1.2

• 2.5

What is the difference in electronegativity between strontium and fluorine?

• 1.5

• 2.0

• 3.03

• 2.5