1st Semester Matriculation: Electronegativity

Electronegativity is...

• Attraction towards proton

• Attraction towards electron

• Attraction towards cation

• Attraction towards anion

Moving down a group, electronegativity.....

• increase

• depends on the temperature

• decrease

• constant

Across a period, electronegativity.....

• increase

• decrease

• constant

• depends on the temperature

What element have zero electronegativity?

• Metals

• Nonmetals

• Metalloids

• Noble gases

Choose the factor/factors that influence electronegativity (you may click more than one tickbox)

• Atomic Size

• Temperature

• Effective Nuclear Charge

• Catalyst

• Shielding Effect

Arrange in order of decreasing electronegativity in period 2

• F > B > N

• N > B > F

• N > F > B

• F > N > B

Arrange in order of increasing electronegativity in period 3

• Al < Cl < P

• Al < P < Cl

• Cl < P < Al

• Cl < Al < P

Electronegativity has the same trends as

• Shielding effect

• Effective nuclear charge

• Ionization energy

• Atomic radii

Chlorine and Fluorine are from group 17 and very electronegative compared to the other groups as they are missing a single electron from the valence shell (ns² np⁵) . However, Fluorine is more negtive than Chlorine. Why?

• Fluorine has less energy level

• Fluorine has less attractive energy

• Fluorine has less proton number

• Fluorine has less electron valence

What is NOT TRUE about electronegativity?

• It is the attraction of an atom has towards shared electrons

• atomic radii is directly proportional with electronegativity

• Fluorine is the most electronegative than other elements

• the atoms with lower electronegtivity pulls electrons closer