Phosphorus Trihydride Concepts

This video tutorial explains how to write the chemical formula for phosphorus trihydride, also known as phosphine. It begins by identifying phosphorus and hydrogen as non-metals, classifying the compound as molecular. The tutorial then details the steps to write the formula, emphasizing the use of element symbols and subscripts based on prefixes. It concludes with tips for memorizing these prefixes.

What is the main objective of the video?

• To discuss the properties of metals

• To write the formula for phosphorus trihydride

• To learn about chemical reactions

• To explain the periodic table

Which elements are involved in forming phosphorus trihydride?

• Phosphorus and Hydrogen

• Phosphorus and Nitrogen

• Phosphorus and Oxygen

• Hydrogen and Helium

What type of compound is phosphorus trihydride?

• Metallic compound

• Alloy

• Ionic compound

• Covalent compound

What is the element symbol for phosphorus?

• Ph

• P

• Ps

• Po

How many hydrogen atoms are in phosphorus trihydride?

• Four

• Three

• Two

• One

What does the prefix 'tri' indicate in phosphorus trihydride?

• Three

• Two

• One

• Four

What resource is suggested for memorizing prefixes?

• A molecular model kit

• A prefix table

• A chemistry textbook

• A periodic table