atomisädevaikutuksesta
Atomisädevaikutus, or atomic radius effect, refers to the gradual decrease in atomic size across a period in the periodic table. As you move from left to right across a period, the number of protons in the nucleus increases, leading to a stronger positive charge. Simultaneously, electrons are added to the same principal energy level, or shell. Despite the addition of electrons, the increased nuclear attraction pulls the electron cloud closer to the nucleus, resulting in a smaller atomic radius.
This trend is a fundamental concept in understanding chemical properties. Elements with smaller atomic radii tend