electronegativity trend

[Tracey Tran 3I]

Why does electronegativity decrease going down the column?

[Naneeta Desar 1K]

Electronegativity decreases down a group due to the increase in shells making the electrons further from the nucleus therefore decreasing the attraction between the protons and electrons.

[Michelle Chan 1J]

The distance between the nucleus and the electrons increase, therefore decreasing the attraction for e-.

[rohun2H]

Electrons will be further away from the nucleus in increasing shells, therefore pull on electrons is less.

[Areli C 1L]

The larger the shell gets the lower electronegativity the element will have because that larger outer shell's electron is a lot farther from the nucleus.

[205154661_Dis2J]

Electronegativity goes down the periodic table because as the electrons are farther away from the nucleus, there is decreased attraction thereby lessening the pull.

[ZainAlrawi_1J]

It decreases a the distance between the electrons increases further away from the nucleus, as such decreasing their attraction.

[J Medina 2I]

Electronegativity decreases down a column because the atom gets larger and the electron gets farther away from the pull of the positively charged nucleus. Ionization is related to this since this weaker pull allows less energy to be needed to remove an electron from an atom.

[Mulin_Li_2J]

Electronegativity of an element is derived by combing both its ionization energy and electron affinity mathematically with the equation (Ionization Energy + Electron Affinity) / 2.

When going down a column in the periodic table, ionization energy and electron affinity both decreases because as the atomic radius increases, it's easy for the element to lose an electron and hard to add one extra. Thus, based on the mathematical expression, electronegativity decreases as going down a column in the periodic table.

[jmtz1I]

Electronegativity decreases as we go down a column because the distance between the nucleus and the electrons increases, meaning that the electrons are far from the nucleus.