Electronegativity and Bonding

Electronegativity is...

• how good an atom is at attracting electrons

• the ability of an atom to lose electrons

• the energy required to remove an electron from a specific atom

• how easy it is to make friends. 

The element with the largest electronegativity in the halogens is - 

• At

• F

• Cl

• Br

A polar bond is one that

• Has an electronegativity difference greater than 0.7

• Has an electronegativity difference greater than 0.5

• Has an electronegativity difference less that 0.5

• Has an electronegativity difference less than 0.7

Tags

NGSS.HS-PS1-1

Which of these would be covalently bonded

• Fr and K

• Sc and O 

• F and Cl

• He and Pt

Explain why fluorine is more electronegative than iodine.

• Fluorine has a higher atomic number.

• Fluorine is closer to the noble gases.

• Fluorine has fewer electron shells, increasing its effective nuclear charge.

• Fluorine has more protons than iodine.

Tags

DOK Level 3: Strategic Thinking

NGSS.HS-PS1-1

Predict the type of bond that will form between two nonmetals with a small difference in electronegativity.

• Ionic

• Covalent

• Metallic

• Hydrogen

Tags

DOK Level 2: Skill/Concept

NGSS.HS-PS1-2

How does electronegativity affect the type of bond formed between two atoms?

• A large difference in electronegativity leads to a metallic bond

• A small difference in electronegativity leads to an ionic bond

• A large difference in electronegativity leads to an ionic bond

• Electronegativity has no effect on the type of bond formed

Which of the following is a characteristic of elements with high electronegativity?

• They are good conductors of electricity

• They tend to lose electrons easily

• They tend to gain electrons easily

• They have low ionization energies

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following statements is true regarding electronegativity and chemical bonding?

• Electronegativity differences do not determine the polarity of a bond

• A bond between atoms with identical electronegativity is polar

• A bond between atoms with a significant electronegativity difference is generally covalent

• A bond between atoms with a small electronegativity difference is generally covalent

What is a quick way to define electronegativity?

• high freezing point

• large number of protons

• low freezing point

• electron greedy