Moving from the element with atomic number 10 to atomic number 11 on the periodic table, there is a change in reactivity. In three to five sentences, identify the direction of the change, and give two reasons for the change. please help answer
Moving from the element with atomic number 10 (neon) to atomic number 11 (sodium) on the periodic table, there is an increase in reactivity. The change in reactivity is due to two main reasons:
1. Electronic configuration: Neon has a fully filled valence shell, with eight electrons, making it highly stable. In contrast, sodium has a single electron in its valence shell, making it very willing to lose that electron to achieve a stable configuration. This makes sodium more likely to participate in chemical reactions and be reactive.
2. Ionization energy: Neon has a high ionization energy, which means it requires a significant amount of energy to remove an electron from its outer shell. On the other hand, sodium has a relatively low ionization energy, meaning it takes less energy to remove its single valence electron. This lower energy requirement makes it easier for sodium to lose electrons and form positive ions in chemical reactions, increasing its reactivity.