Ionic and Covalent Bonds

What is the difference between a polar and nonpolar covalent bond?

• A polar covalent bond occurs when electrons are shared equally between atoms, while a nonpolar covalent bond occurs when electrons are shared unequally.

• A polar covalent bond occurs when electrons are shared unequally between atoms, while a nonpolar covalent bond occurs when electrons are shared equally.

• A polar covalent bond involves the transfer of electrons, while a nonpolar covalent bond involves the sharing of electrons.

• A polar covalent bond is stronger than a nonpolar covalent bond due to unequal sharing of electrons.

Where are metals located on the periodic table?

• On the right side of the periodic table

• In the bottom rows of the periodic table

• On the left side and in the center of the periodic table

• Scattered throughout the periodic table

What type of bond is formed between two nonmetals?

• A covalent bond

• An ionic bond

• A metallic bond

• A hydrogen bond

What is the Lewis structure?

• A diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

• A method for calculating the molecular weight of a compound.

• A representation of the three-dimensional shape of a molecule.

• A technique used to determine the boiling point of a substance.

What is the significance of the periodic table in understanding bonding?

• It shows the atomic mass of elements.

• It helps predict how elements will bond based on their position, which indicates their electron configuration and reactivity.

• It lists all known elements in alphabetical order.

• It provides information about the historical discovery of elements.

What is an ionic bond?

• A type of bond formed by the sharing of electrons between atoms.

• A type of bond that occurs when one atom transfers electrons to another atom, resulting in charged ions that attract each other.

• A bond that forms between two nonmetals through covalent sharing of electrons.

• A bond that occurs only in metals and involves the pooling of electrons.

What is the octet rule?

• Atoms tend to bond to achieve a full outer shell of eight electrons.

• Atoms can have any number of electrons in their valence shell.

• The octet rule applies only to noble gases.

• Atoms bond randomly without regard to electron configuration.

What is a molecule?

• A group of two or more atoms bonded together by ionic bonds.

• A group of two or more atoms bonded together by covalent bonds.

• A single atom that can exist independently.

• A collection of molecules that form a solid structure.

What are the characteristics of covalent compounds?

• Covalent compounds have high melting and boiling points and conduct electricity.

• Covalent compounds usually have lower melting and boiling points, may not be soluble in water, and do not conduct electricity.

• Covalent compounds are always soluble in water and have high boiling points.

• Covalent compounds conduct electricity and have no specific melting point.

What is electronegativity?

• A measure of an atom's ability to attract and hold onto electrons.

• The energy required to remove an electron from an atom.

• The tendency of an atom to lose electrons in a chemical reaction.

• The measure of an atom's size in a molecule.