Question

part i: explain each of the following

1. why are the trends for electronegativity and ionization energy similar? (use the definitions to help you )

Explanation:

Both electronegativity and ionization energy relate to an atom's ability to attract or hold onto electrons. Electronegativity is the ability of an atom in a chemical bond to attract electrons. Ionization energy is the energy required to remove an electron from a gaseous - state atom. As the effective nuclear charge increases across a period (more protons in the nucleus with little increase in shielding), both electronegativity and ionization energy increase because the nucleus has a stronger pull on electrons. Down a group, both decrease as the outermost electrons are further from the nucleus and more shielded.

Answer:

The trends for electronegativity and ionization energy are similar because they both depend on the effective nuclear charge and the distance of the outermost electrons from the nucleus. As effective nuclear charge increases (across a period), both increase, and as the distance of outermost electrons from the nucleus increases and shielding increases (down a group), both decrease.