Question: Which Of The Following Has Lowest Electron Affinity?

Which element has the highest electron affinity?

Fluorine.

D.

Oxygen.

Hint: We should remember that the element which will release the most amount of energy on adding an electron in its isolated gaseous atom will posse’s highest electron affinity in the periodic table..

Which element has highest electron affinity among halogens?

chlorineTherefore, 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.

Which of the following has least electron affinity?

Nitrogen has least electron affinity because of its half-filled 2p orbital.

Which of the following will have electron affinity?

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….Complete answer:ElementGroup numberPeriod numberCarbonIV A2NitrogenV A2OxygenVI A2SulphurVI A3

Which element has the most negative electron affinity?

ChlorineChlorine has the most negative electron affinity. According to Wikipedia [Electron affinity] , In chemistry and atomic physics, the electron affinity of an atom or molecule is defined as the amount of energy released when an electron is added to a neutral atom or molecule in the gaseous state to form a negative ion.

Do noble gases have a high electron affinity?

The major exception to this rule are the noble gases. They are small atoms and do follow the general trend for ionization energies. … Any electrons added to a noble gas would have to be the first electron in a new (larger) energy level. This causes the noble gases to have essentially zero electron affinity.

Which halogen has the smallest electron affinity?

astatineAll halogens have seven valence electrons, but as the atomic size increases, the attraction between the nucleus and these outer electrons decreases. The largest halogen atom is astatine. Therefore, astatine has the least attraction for electrons of all the halogens.

How many elements of 6th period will have electron in 6d?

32 elementsAnswer. The energy of the 6d subshell is even higher than that of the 7s subshell.In the 6th periods,electrons can be filled in only 6s,4f,5d and 6p subshells. Hence,the sixth periods of the periodic table should have 32 elements.

How do you explain electron affinity?

Electron affinity is defined as the change in energy (in kJ/mole) of a neutral atom (in the gaseous phase) when an electron is added to the atom to form a negative ion. In other words, the neutral atom’s likelihood of gaining an electron.

What are the exceptions to electron affinity?

There are, however, two major exceptions to this trend: The electron affinities of elements B through F in the second row of the periodic table are less negative than those of the elements immediately below them in the third row.

What are the factors affecting 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 least electron affinity CL’s neck?

sulphurHalogens have the highest electron affinity, with chlorine the highest because it has larger atom than Fluorine therefore Cl>F>Br>l. Therefore properly sulphur has the least electron affinity.

Which configuration has least electron affinity?

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

What is positive electron affinity?

The electron affinity is defined as the energy change that occurs when an atom gains an electron, releasing energy in the process. … If a reaction is exothermic, the change in energy is negative. This means that the electron affinity is positive.