Which element has the highest 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.

Why does CA have a bigger radius than Ca2+?

For a) the neutral Ca atom has a larger radius than the Ca2+ ion. This is because the loss of electrons reduces the shielding effect between the electrons and the nucleus, so the attraction of the nucleus for the electrons is greater, reducing the radius.

Which entity is larger F or Li+?

As a result, the atomic size of fluorine will be smaller than that of lithium, or, in other words, lithium will have larger atomic radius than fluorine.

Which of the following is correct radius of Ca2+?

The correct option is : a Ca2+ < K+ < Ar < Cl- < S2- Explanation:Among isoelectronic ions ionic radii of anions is more than that of cations. Further size of the anion increases with increase in negative charge and size of the cation decreases with increase in positive charge.

Which of the following is correct radius of Ca2+ CL S2?

The correct option is: c S2- > Cl- > K+ > Ca2+Explanation:S2- > Cl- > K+ > Ca2+ Among isoelectronic species ionic radii increases with increase in negative charge. This happens because effective nuclear charge Zeff decreases. Similarly ionic radii decreases with increase in positive charge as Zeff increases.

What is the correct order of size of K K+ Ca and Ca2+?

The atomic numbers of the ions are S (16), Cl (17), K (19), and Ca (20). Thus, the ions decrease in size in the order S2– > Cl– > K+ > Ca2+.

Which Ionic has largest radius S2 Cl K+ Ca2+?

The correct option is : d S2-Explanation:Since all of these ions contain 18 electrons each so these are isoelectronic. For isoelectronic ions smaller the positive nuclear charge greater is the size of the ion.

Which one has the smallest radius CL S2 K+ Ca2+?

Calcium comes the last and forms the smallest ion.

Which of the following is largest in size CL S2 Na+ F?

S2- is the largest in size. S2- and Cl- have an extra shell than the other two and thus the two largest ions of the four. S2- and Cl- are isoelectronic and contain 16 and 17 protons respectively.

Which ion has a larger radius Cl or Ca2+?

When all atoms/ions are in the same noble gas configuration, then you would just compare the ratio of protons to electrons. Whichever has the highest proton/electron ratio would have the smallest nucleus. Therefore Ca2+ has the smallest nucleus while Cl- has the largest nucleus.

What is the atomic radius of CL?

175 pm