They are all radioactive 2. The first element in each period of the periodic table is always a. It increases as we move from left to right in the table b. It decreases as we move from left to right in the table c. It generally increases, but there are a few exceptions 9.
Electron affinity is a. the energy loss when an electron is removed from an atom b.
Electron affinity and ionization energy are equal but opposite atomic forces. An atom's electron affinity is the atom's energy change occurring when it loses an electron, whereas ionization energy is the energy needed to add an electron. An atom's electron affinity is the atom's energy change which occurs when it gains an extra electron, wherease ionization energy is the energy needed to remove an electron. Electron affinity is how strongly individual electrons are attracted to the electrons of other atoms. They are reddish, reactive metals, which do not conduct electricity.