Covalent Compounds and PCl3 Structure

The video tutorial explores whether phosphorus trichloride (PCl3) is ionic or covalent. It uses the periodic table to identify phosphorus and chlorine as nonmetals, indicating that PCl3 is a covalent compound, also known as a molecular compound. The structure of PCl3 is examined, showing phosphorus at the center with three chlorine atoms bonded through shared pairs of electrons, characteristic of covalent bonds. The video also discusses lone pair electrons present in the molecule. In conclusion, PCl3 is confirmed as a covalent or molecular compound.

What type of elements are phosphorus and chlorine in PCl3?

• Metals

• Nonmetals

• Metalloids

• Noble gases

What type of compound is PCl3?

• Covalent

• Metallic

• Amphoteric

• Ionic

What is another name for a covalent compound?

• Amphoteric compound

• Ionic compound

• Molecular compound

• Metallic compound

In the structure of PCl3, what do the lines between phosphorus and chlorine represent?

• Lone pairs of electrons

• Shared pairs of electrons

• Metallic bonds

• Ionic bonds

How many chlorine atoms are bonded to phosphorus in PCl3?

• Three

• One

• Two

• Four

What are the electrons not involved in bonding called in PCl3?

• Valence electrons

• Lone pair electrons

• Bonding electrons

• Free electrons

What is the primary type of bond in PCl3?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond