Polarity and Electronegativity

In a polar covalent bond, the electrons gather around...

• The atom with the Greatest Electronegativity

• The atom with the Lowest Electronegativity

• Each atom Equally

• None of the Above

Electronegativity _______ across a period and ______ down a group.

• increases, increases

• increases, decreases

• decreases, increases

• decreases, decreases

Electronegativity refers to an atom's ability to _____________ shared electrons in a covalent bond.

• attract

• donate

H₂O is

• polar 

• non-polar

Tags

NGSS.HS-PS1-1

The electronegativity values for hydrogen and chlorine are 2.1 and 3.0, respectively. What is the polarity of the H-Cl bond?

• Nonpolar covalent

• Polar covalent

• Ionic

• Metallic

Which of the following bonds is most polar?

• C-H

• N-H

• O-H

• F-H

Which of the following pairs of elements will form a bond with the greatest polarity?

• H and Cl

• C and O

• Na and Cl

• N and O

Tags

NGSS.HS-PS1-1

What trend does electronegativity follow on the periodic table?

• Increases from left to right and decreases from top to bottom

• Decreases from left to right and increases from top to bottom

• Increases from left to right and increases from top to bottom

• Decreases from left to right and decreases from top to bottom

Answer explanation

Electronegativity increases from left to right across periods and decreases from top to bottom within groups on the periodic table.

Tags

NGSS.HS-PS1-2

Which of these has the highest electronegativity?

• Ca

• Fe

• N

• Au

Tags

NGSS.HS-PS1-2

Which of the following elements has the lowest electronegativity?

• Fluorine

• Francium

• Oxygen

• Nitrogen

Answer explanation

Francium has the lowest electronegativity among the given elements.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2