Chromium and Iodine Chemistry Concepts

The video tutorial explains how to write the chemical formula for Chromium(II) Iodide. It begins by identifying the symbols for Chromium and Iodine, and explains their respective ionic charges. The tutorial then demonstrates how to balance these charges to achieve a net charge of zero, resulting in the formula CrI2. The video concludes with a brief summary of the process.

What is the element symbol for chromium?

• Cm

• Co

• Cr

• Ch

What is the charge of chromium in Chromium 2 Iodide?

• 2+

• 3+

• 1+

• 4+

In which group is iodine found on the periodic table?

• Group 14

• Group 1

• Group 18

• Group 7A

What is the ionic charge of iodine?

• 2-

• 1-

• 2+

• 1+

What is the correct formula for Chromium 2 Iodide?

• CrI2

• Cr2I2

• Cr2I

• CrI