Electron affinity trend

[annemarielawrence]

can someone explain what is the electron affinity trend on the periodic table? When we say it increases across a row, is it increasing in magnitude?

[AngelinaYuleiGao 1B]

Electron affinity is the amount of energy released when an electron is added to an atom to form a negative ion. It does increase in magnitude as we move right across a row, but decreases as we move down a column.

[Ellie Fox 2K]

Yes like the previous post said, electron affinity is the degree to which an atom or molecule attracts additional electrons. This affinity for electrons does increase moving right across a row and decreases down a column.

[Kavya Anand 2B]

Electron affinity is the change in energy as an electron is added to a neutral molecule (in gas phase). The trend increases across the row and down the period.

[Ellen Brock 2I]

Electron affinity essentially increases because we are adding electrons to energy levels leading to the nucleus drawing in those electrons more tightly. This is why it increases across a row seeing as the atomic radius decreases meaning the electrons are also closer to the nucleus.

[ThomasL1L]

Electron affinity increases up and to the right of the periodic table meaning that the most element with the most electron affinity would be fluorine.

[Raizel Ferrer 1H]

Electron affinity increases across the period and increases up a group so the trend is increasing to the top right of the periodic table. Groups 16 and 17 have high electron affinities because the groups wants electrons to be a noble gas.

[705676154]

electron affinity increases across a period and up a group!

[Matthew Nguyen 3G]

The electron affinity increases across to the right and up because elements are adding more electrons resulting in a electrons being more closely packed.

[Kelly McFarlane]

Electron affinity is the energy released when electron is added so it increases across.

[605537776]

Electron Affinity increases to the top right of the periodic table.

[JafarriNocentelli 1G]

Electron affinity increases going up and to the right of the Periodic Table, making the most electronegative atom Fluorine