What are the factors that affect electron affinity?

Various factors that affect electron affinity are atomic size, nuclear charge and the symmetry of the electronic configuration. Atomic size: With increase in the atomic size, the distance between the nucleus and the incoming electron also increases.

What does the electron affinity of an element depend on?

There are two factors that can affect electron affinity. These are atomic size and nuclear charge. The smaller the atom is, the closer the outermost shell is; therefore, it is a stronger attraction between the nucleus and the incoming electron. That means the electron affinity is higher for smaller atoms.

Where is electron affinity highest on the periodic table?

1. Where is electron affinity highest on the periodic table? Electron affinity increases towards the top of the periodic table and towards the right. Thus, the top right elements (except for the noble gases) have the highest electron affinities – the greatest energy released when an electron is added.

How do you determine higher electron affinity?

Electron affinity increases upward for the groups and from left to right across periods of a periodic table because the electrons added to energy levels become closer to the nucleus, thus a stronger attraction between the nucleus and its electrons.

How does electron affinity change when we move from left to right in a periodic table?

In general, electron affinities become more negative as we move from left to right on the periodic table. In general, electron affinities become less negative from top to bottom of a group.

Where on the periodic table is the lowest electron affinity?

mercury
What is the lowest electron affinity? Metals are more likely to lose electrons than they are to gain them. Of the metals, mercury has the lowest electron affinity.

Which has higher electron affinity O or SE?

In the periodic table Oxygen, Sulphur and selenium all are present in the same group in the order Oxygen, Sulphur, selenium. As we go down the group the size of the elements increases and the electron gain enthalpy decreases. Hence, The correct order of electron affinity is $ O < Se < S $ .

Which element has the highest electron affinity?

Therefore, chlorine has a higher electron affinity than fluorine , and this orbital structure causes it to have the highest electron affinity of all of the elements.

How to tell electron affinity?

Electron affinity can be measured by the amount of energy released when an electron is added to an atom to form a negative ion. When forming a negative ion, an atom undergoes the following reaction:: atom + electron (e -) -> negative ion + energy For example, consider the reaction by which chlorine forms a negative ion:

What is TL on the periodic table?

Thallium is element 81 on the periodic table. It has the chemical abbreviation Tl and is a soft, grayish metal that resembles tin. Thallium isn’t found freely in nature, and it has kind of a bad reputation as a toxic element.

What is the electron configuration for the periodic table?

Electron configuration. An electron configuration is the arrangement of electrons within an atom. The electron configuration describes where the electrons are inside orbitals. The structure of the Periodic table of elements is partly based on electron configuration. There are four kinds of electron configurations: s, p, d, and f orbitals.