The video tutorial explains how to determine the difference in electronegativity between sodium and oxygen using the periodic table. It highlights the trend of increasing electronegativity towards fluorine and demonstrates how to calculate the difference using numerical values. The tutorial concludes by explaining that a significant difference in electronegativity results in an ionic bond, as seen between sodium and oxygen.

What is the first step in determining the difference in electronegativity between two elements?

• Look at their atomic numbers.

• Identify their electron configurations.

• Check their positions on the periodic table.

• Compare their atomic masses.

Which element is known to have the highest electronegativity?

• Chlorine

• Fluorine

• Sodium

• Oxygen

How do electronegativity values change as you move across the periodic table?

• They fluctuate randomly.

• They increase.

• They remain constant.

• They decrease.

What is the electronegativity difference between sodium and oxygen?

• 1.51

• 2.51

• 3.51

• 4.51

What type of bond is formed between sodium and oxygen based on their electronegativity difference?

• Hydrogen bond

• Covalent bond

• Metallic bond

• Ionic bond

Why is oxygen more electronegative than sodium?

• It is a non-metal.

• It has a higher atomic number.

• It has more protons.

• It is closer to fluorine on the periodic table.

What is a key indicator of an ionic bond between two elements?

• Both elements are non-metals.

• A small difference in electronegativity.

• A large difference in electronegativity.

• Both elements are metals.