Bonding and Electronegativity in Ammonia

The video explores whether ammonia (NH3) is ionic or covalent. It begins by examining the periodic table, identifying nitrogen and hydrogen as non-metals, which suggests a covalent nature. The video further explains that the electronegativity difference between nitrogen and hydrogen is not significant enough to transfer electrons, confirming that ammonia is a covalent compound. Dr. B concludes by reiterating that NH3 is covalent.

What type of elements are nitrogen and hydrogen classified as in the periodic table?

• Metals

• Non-metals

• Metalloids

• Noble gases

Why is ammonia (NH3) considered a covalent compound?

• Because it contains two non-metals

• Because it contains a metal and a non-metal

• Because it contains a metalloid and a non-metal

• Because it contains two metals

What is the main reason ammonia is not ionic?

• The small difference in electronegativity

• The large difference in electronegativity

• The presence of a metal

• The presence of a metalloid

What happens to electrons in a covalent compound like ammonia?

• They are transferred from one atom to another

• They are absorbed by the nucleus

• They are lost to the environment

• They are shared between atoms

Which of the following best describes the bond in ammonia?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Metallic bond

What is the role of electronegativity in determining the type of bond in ammonia?

• It determines whether electrons are shared or transferred

• It determines the state of matter

• It determines the melting point

• It determines the color of the compound