Chemical Bonding

Question 1

What is a chemical bond?

Answer 1

A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds.

Question 2

True or False: Ionic bonds are formed by the sharing of electrons.

Answer 2

False

Question 3

Fill in the blank: The _______ bond is characterized by the transfer of electrons from one atom to another.

Answer 3

ionic

Question 4

What type of bond involves the sharing of electron pairs between atoms?

Answer 4

Covalent bond

Question 5

Which type of bond typically has a higher melting point, ionic or covalent?

Answer 5

Ionic bond

Question 6

What is the octet rule?

Answer 6

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Question 7

How are metallic bonds characterized?

Answer 7

Metallic bonds are characterized by a ‘sea of electrons’ that are free to move and contribute to the conductivity and malleability of metals.

Question 8

True or False: In covalent bonding, atoms can achieve a full outer shell by sharing electrons.

Answer 8

True

Question 9

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

Answer 9

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

Question 10

What is a dipole moment?

Answer 10

A dipole moment is a measure of the separation of positive and negative charges in a molecule, indicating its polarity.

Question 11

Which element is most likely to form a cation?

Answer 11

Metals

Question 12

What type of bond is formed between sodium and chlorine in sodium chloride?

Answer 12

Ionic bond

Question 13

Fill in the blank: A _______ bond is typically formed between two nonmetals.

Answer 13

covalent

Question 14

What is the primary factor that determines the type of bond formed between two atoms?

Answer 14

The difference in electronegativity between the atoms.

Question 15

True or False: Ionic compounds are generally soluble in water.

Answer 15

True

Question 16

What type of bond is characterized by a shared pair of electrons?

Answer 16

Covalent bond

Question 17

Which of the following is an example of a molecule with a double bond: H2, O2, or CO2?

Answer 17

CO2

Question 18

What is the shape of a molecule with a tetrahedral geometry?

Answer 18

Four bonds arranged around a central atom at angles of approximately 109.5 degrees.

Question 19

Fill in the blank: In a _______ bond, one atom donates both electrons to be shared.

Answer 19

coordinate covalent

Question 20

What is the role of valence electrons in chemical bonding?

Answer 20

Valence electrons are the electrons in the outermost shell of an atom that participate in chemical bonding.

Question 21

What type of bond exists in metals that allows for conductivity?

Answer 21

Metallic bond

Question 22

True or False: A compound with ionic bonds will conduct electricity in solid form.

Answer 22

False

Question 23

What is the primary characteristic of a nonpolar molecule?

Answer 23

It has an even distribution of electrical charge.

Question 24

What is an example of a molecule that exhibits hydrogen bonding?

Answer 24

Water (H2O)

Question 25

Fill in the blank: A _______ bond is formed when two atoms have a significant difference in electronegativity.

Answer 25

polar covalent