Where is the lowest electron affinity on the periodic table?

Nobelium has the lowest estimated electron affinity in the periodic table at −223 kJ/mol. So No- releases energy when its extra electron is removed. In other words, it takes energy to attached an electron to No in the first place.

Which element in the periodic table has the most electron affinity?

Chlorine
Chlorine has the highest electron affinity among the elements. Its high affinity can be attributed to its large atomic radius, or size. Because chlorine’s outermost orbital is 3p, its electrons have a large amount of space to share with an incoming electron.

Which type of elements have least affinity for electrons?

Periodic Trends in Electron Affinity The electron affinities of the noble gases have not been conclusively measured, so they may or may not have slightly negative values. Chlorine has the highest Eea while mercury has the lowest.

Which elements have no affinity for electrons?

Explanation: Neon, for example, has its outer shell full, because it’s a noble gas. It has already satisfied its filling of electrons, so it doesn’t want anymore (or any less). This is true of all noble gases.

Which of the following has electron affinity less than zero?

Hence, an element that has zero electron affinity is Neon….Important Points.

Which group has highest electron affinity?

Out of all the groups present in the periodic table, halogens have high electron affinity compared to others. This is due to the small size of all halogen atoms and high effective nuclear charge present on the nucleus.

What is electron affinity in periodic table?

The electron affinity of an atom or molecule is the propensity for that particle to gain an electron. There are general trends in electron affinity across and down the periodic table of elements. Electron affinity generally increases across a period in the periodic table and sometimes decreases down a group.

Why do metals have low electron affinity?

Metals have a less likely chance to gain electrons because it is easier to lose their valance electrons and form cations. It is easier to lose their valence electrons because metals’ nuclei do not have a strong pull on their valence electrons. Thus, metals are known to have lower electron affinities.

Which elements have no affinity for electrons electron affinity is 0?

The noble gas elements.

Which element has the most negative electron affinity?

Se
The overall order is Se < Te < Sb, so Se has the most negative electron affinity among the three elements.

Which of the following has less electron affinity?

Thus, oxygen has the lowest electron affinity.

Which element has zero electron affinity in the third period?

An element in period-3 whose electron affinity is zero is Argon.