Zinc and Iodine Compounds

The video tutorial explains how to write the chemical formula for zinc iodide. It begins by identifying the symbols for zinc and iodide, then discusses the nature of ionic compounds and the importance of charge balance. Zinc typically has a 2+ charge, while iodide has a 1- charge. To achieve a neutral compound, two iodide ions are needed for each zinc ion, resulting in the formula ZnI2. The video also touches on naming conventions, noting that while 'zinc iodide' is common, 'zinc(II) iodide' is also correct. The tutorial concludes with a summary of the formula and its components.

What is the symbol for zinc in the periodic table?

• Zn

• Zc

• Zi

• Z

Which type of compound is formed between zinc and iodide?

• Metallic

• Ionic

• Molecular

• Covalent

What is the typical charge of a zinc ion?

• 2+

• 0

• 1+

• 3+

In which group is iodine found in the periodic table?

• Group 18

• Group 1

• Group 14

• Group 7A

What is the chemical formula for zinc iodide?

• ZnI2

• ZnI

• Zn2I

• Zn2I2

How is zinc iodide commonly written when considering zinc as a transition metal?

• Zinc Iodide 2

• Zinc Iodide

• Zinc(II) Iodide

• Zinc Iodide(II)