Electronegativity and Bond Classification

Electronegativity and Bond Classification

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Olivia Brooks

FREE Resource

The video explores whether iron III oxide (Fe2O3) is ionic or covalent. Initially, it is classified as ionic based on the periodic table, as it consists of a metal and a non-metal. However, the electronegativity difference between iron and oxygen is 1.7, which suggests a polar covalent bond. The video discusses how different definitions might classify Fe2O3 differently, emphasizing the importance of understanding the criteria used for classification.

Read more

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial conclusion about the nature of Fe2O3 based on the periodic table?

Nonpolar

Metallic

Ionic

Covalent

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electronegativity value of iron?

4.0

3.5

2.5

1.8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the electronegativity difference between iron and oxygen calculated?

By multiplying their values

By dividing oxygen's value by iron's

By subtracting iron's value from oxygen's

By adding their values

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electronegativity difference between Fe and O?

1.7

2.5

1.5

2.0

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does Fe2O3 fall on the electronegativity continuum?

Polar covalent

Nonpolar

Ionic

Metallic

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to some textbooks, what electronegativity difference is considered ionic?

2.0 and above

1.7 and above

2.5 and above

1.5 and above

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What factor can change the classification of Fe2O3 from ionic to polar covalent?

The color of the compound

The temperature

The textbook definition used

The phase of the compound

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you check to determine if Fe2O3 is ionic or covalent?

The color of the compound

The phase of the compound

The temperature at which it is measured

The definition of ionic and covalent bonds used