the greater the nuclear charge greater is the electron affinity ?why?
Answers
Explanation:
because the attraction of electron increases so that's why the greater the nuclear charge greater the electron affinity
Answer:
Explanation:
The smaller the atom is, the closer the outermost shell is; therefore, it is a stronger attraction between the nucleus and the incoming electron. That means the electron affinity is higher for smaller atoms.
When looking at the periodic table the atomic radius increases from top to bottom, moving down a column; therefore, the electron affinity increases from the bottom to the top of the column.
Nuclear charge also affects electron affinity. The nuclear charge is also known as the atomic number, which is the same as the number of protons. Protons are positive subatomic particles. The more protons there are, the greater the attraction is to electrons.
Trends or patterns can be seen in the periodic table with regard to electron affinity. We are looking at this in terms of across the period, not down a group. From left to right, the nuclear charge increases, resulting in a greater attraction to incoming electrons. So, we can say that from left to right across a period, the electron affinity increases upward.