True or False: Metals usually have stronger electron affinity than non-metals. True or False: Noble gas elements have a very large value for electron affinity. True or False: Negative anions have a larger ionic radius than the atomic radius of their neutral atom.

Explanation:

Metals usually have stronger electron affinity than non-metals:

In the periodic table, the trend of electron affinity is that it increases from left to right across the period and decrease down the group.

False

Noble gas elements have a very large value for electron affinity:

Electron affinity is the change in energy of an atom when an electron is added. Noble gases already have a complete octet configuration hence there is no reason to accept any electrons. This makes their electron affinity value less than or equal to zero.

False

Negative anions have a larger ionic radius than the atomic radius of their neutral atom:

Neutral atoms that gain electron are referred to as anions. The extra electron increases the electron-electron repulsion which pushes the electrons further apart and finally increased radius.

True

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.

diaria maybe go see a doctor about that