Which pair of elements will form the most polar covalent bond?

Which pair of elements will form the most polar covalent bond?

The answer is b) N – H. The quick answer – right from the get-go, since nitrogen is one of the most electronegative elements in the periodic table, the bond it forms with hydrogen will be the most polar out of all those listed.

Which atom pairs can form a polar covalent bond?

A polar covalent bond exists when atoms with different electronegativities share electrons in a covalent bond. Consider the hydrogen chloride (HCl) molecule. Each atom in HCl requires one more electron to form an inert gas electron configuration.

Which pair of elements is most likely to form a bond?

A pair of elements will most likely form an ionic bond if one is a metal and one is a nonmetal. These types of ionic compounds are composed of monatomic cations and anions.

Which of the following pair of atoms has the most polar bond?

Nitrogen (N) has an electronegativity of 3.04 and chlorine (Cl) 3.16, so the N-Cl bond has difference of 0.12 (3.16–3.04). The P-F is by far the more polar bond.

Which pair of atoms can form a nonpolar covalent bond?

If the electronegativity between two atoms is basically the same, a nonpolar covalent bond will form. For example, two atoms of fluorine each have the same electronegativity. Since there is no difference between electronegativity between the two atoms, they will equally share electrons forming a nonpolar covalent bond.

Which pair of atoms forms a nonpolar covalent bond?

Which one of the following pair atom is most likely to form an ionic bond?

Explanation: A pair of elements will most likely form an ionic bond if one is a metal and one is a nonmetal. These types of ionic compounds are composed of monatomic cations and anions.

Which combination of atoms is most likely to produce a compound with ionic bonds?

Al & F would most likely form an ionic bond.

Which pair of atoms has least polar bonds?

The electronegativity of O is 3.5. The electronegativity of N is 3.0. The electronegativity of B is 2.0. The least polar bond among the group is C–I.

What pairs form a covalent bond?

A hydrogen molecule forms from two hydrogen atoms, each with one electron in a 1 s orbital. The two hydrogen atoms are attracted to the same pair of electrons in the covalent bond. The bond is represented either as a pair of “dots” or as a solid line….Covalent Bonds.

Atom	Valence
Iodine	1
Oxygen	2
Sulfur	2
Nitrogen	3

Which is more electronegative in a polar covalent bond?

Electrons in a polar covalent bond are shifted toward the more electronegative atom; thus, the more electronegative atom is the one with the partial negative charge. The greater the difference in electronegativity, the more polarized the electron distribution and the larger the partial charges of the atoms.

Which is the purest form of a covalent bond?

The purest form of a covalent bond exists in diatomic gases. Hydrogen, oxygen, nitrogen and the halogens all form these types of bonds. By sharing an electron they satisfy the octet rule for both atoms. Because the atoms have the same electronegativity, the shared electron has the same attraction to both.

Which is the best measure of the polarity of a bond?

The absolute value of the difference in electronegativity (ΔEN) of two bonded atoms provides a rough measure of the polarity to be expected in the bond and, thus, the bond type. When the difference is very small or zero, the bond is covalent and nonpolar.

Why do elements tend to form covalent bonds?

Because the atoms have the same electronegativity, the shared electron has the same attraction to both. The carbon-hydrogen bond organic materials require a covalent bond. These two elements form long chains that sometimes branch and have functional groups bonded to the chain.