Does CA or K have a lower electron affinity?

For two elements in the same group, the one closest to the top will have a greater EA. Since Ca and K are in the same period, the element with the lowest EA will be K .

Similarly, it is asked, which has lower 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 E_ea while mercury has the lowest. E_ea generally increases across a period (row) in the periodic table, due to the filling of the valence shell of the atom.

Beside above, which among the following has the least electron affinity K Ca Al P? Due to which high amount of energy is released. Calcium has two electrons in its outermost shell. So it will tend to lose those electrons not to gain one extra electron. This means electron affinity of calcium is less than that of fluorine.

Just so, what is the electron affinity of K?

48.383

Does KR have electron affinity?

Electron Affinity of Krypton is — kJ/mol. Electronegativity of Krypton is 3.

Related Question Answers

Which has 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 do you explain electron affinity?

The electron affinity (E_ea) of an atom or molecule is defined as the amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion.

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.

Which element has the most negative electron affinity?

Recall that electron affinity is the energy change from the addition of 1 e^– to a gaseous element/ion.

• It is represented by this chemical equation:
• Comparing Cl, Br, and I which are all in the same group, Cl is found at the topmost.
• This means Cl has the highest/most negative electron affinity.

Why is electron affinity so positive for noble gas elements?

The noble gases present in the group 18 of periodic table, have electronic configuration ns2np6. Thus, in case of noble gases, where it resists the addition of electrons, extra energy is required in order to force the electron to bind to the stable atom. Therefore, making the electron gain enthalpies positive.

Does Ca or K have a higher electron affinity?

K has a more exothermic electron affinity because the electron gained fills the 4s orbital. In Ca the electron goes to 3d. The energy gap between 4s and 3d is enough to make the process barely exothermic.

What is the electron affinity of arsenic?

The electron affinity of arsenic is 78 kJ mol^‑1.

Which is the correct order of electron affinity?

Therefore, the correct order of electron affinity is Cl > F > Br.

Which element has lowest electron affinity in oxygen family?

Thus, in case of oxygen and sulphur which are present in the same group, sulphur has greater electron affinity than oxygen. So, out of the given elements to us, nitrogen has the lowest electron affinity. Hence, the correct option is (A) Nitrogen.

What is a negative electron affinity?

Electron Affinity is the energy associated with the addition of an electon to a gaseous atom. A more negative electron affinity corresponds to a greater attraction for an electron. (An unbound electron has an energy of zero.)

Which has more electron affinity fluorine or chlorine?

the electron affinity of the fluorine is less than chlorine because the size of fluorine is too small as size decreases from left to right inside period, whereas chlorine has a larger size to accommodate electrons hence electron affinity of chlorine is more than fluorine.

Which of the following configuration will have at least electron affinity?

The electron configuration ns2np3 will have least electron affinity. The np orbital is half filled which results in extra stability.

Which has the greatest electron affinity SE Cl or Br?

Chlorine does have a higher electron affinity than bromine. A significant amount of energy is released when an electron is added to these elements because this incoming electron allows them to complete their octet.

What is the first electron affinity of oxygen?

142 kJ mol^-1

What is the second electron affinity of oxygen?

744.4kJ/m

What is Bromines electron affinity?

Electron Affinity of Bromine is 324.6 kJ/mol.