Why do covalent compounds share electrons?

This video tutorial explains how to identify covalent compounds, which form when electrons are shared between two nonmetals or anions. It highlights the importance of electronegativity in electron sharing and provides methods to identify covalent compounds. The video also includes examples and discusses exceptions like hydrogen, which, despite its position on the periodic table, is a nonmetal.

What is a key characteristic of covalent compounds?

• They form when electrons are shared between nonmetals.

• They involve the transfer of electrons.

• They form between metals and nonmetals.

• They are always ionic in nature.

Why do nonmetals share electrons in covalent bonds?

• Because they are metals.

• Because they are located on the left side of the periodic table.

• Because they have similar electronegativity values.

• Because they have a large difference in electronegativity.

Which of the following statements about electronegativity is true?

• Electronegativity is higher in metals than in nonmetals.

• Electronegativity is the ability of an atom to attract electrons.

• Electronegativity is irrelevant in covalent bonding.

• Electronegativity is the ability of an atom to donate electrons.

Which element is an exception to the rule that nonmetals are on the right side of the periodic table?

• Nitrogen

• Carbon

• Hydrogen

• Oxygen

How can you identify a covalent compound?

• It contains a metal and a nonmetal.

• It is formed by the transfer of electrons.

• It is formed by the sharing of electrons between two nonmetals.

• It is always a solid at room temperature.