What Do You Know About Electronegativity?

Electronegativity

1. What is electronegativity?

     The measure of the attraction of an atom for the electrons in a chemical bond

     The distance between two atoms

     The number of atoms in a chemical bond

2. What is the range of the Pauling Scale?

     0.2 to 9.0

     0.7 to 4.0

     0.5 to 7.0

3. What is the relationship between electronegativity and atomic number?

     Electronegativity increases as atomic number decreases

     There is no effect on electronegativity based on atomic number

     Electronegativity decreases as atomic number increases

4. What is the relationship between electronegativity and the Periodic Table?

     Moving left to right across, electronegativity increases and moving top to bottom, electronegativity decreases

     Moving left to right across, electronegativity decreases and moving top to bottom, electronegativity decreases

     Moving left to right across, electronegativity decreases and moving top to bottom, electronegativity increases

5. What happens when two atoms of equal electronegativity bond together?

     The electron pair will move completely to one of the atoms making one of them lose total control of its electrons

     The electron pairs will be found on average half way between the two atoms

     The electron pair will move slightly over to one of the atoms making one of the atoms slightly negative and the other slightly positive

6. What will happen when one atom is a lot more electronegative than the other atom?

     The electron pair will move over slightly to the more electronegative atom making it slightly negative and the other atom slightly positive

     The electron pairs will be found on average half way between the two atoms

     The electron pair will move completely to one of the atoms making one of them lose total control of its electrons

7. What will happen when one atom is slightly more electronegative than the other atom?

     The electron pair will move completely to one of the atoms making one of them lose total control of its electrons

     The electron pair will move over slightly to the more electronegative atom making it slightly negative and the other atom slightly positive

     The electron pairs will be found on average half way between the two atoms

8. Which element is the most electronegative?

     Cesium

     Boron

     Flourine

9. Which element is the least electronegative?

     Boron

     Cesium and Francium

     Oxygen and Argon

10. Why do elements with low ionization energies have a low electronegativity?

      Their nucleus does not exert a strong attractive force on electrons

      Their nucleus exerts a strong pull on electrons