which is more reactive k or ca? ( from periodic table.) when poured in water?
To determine which element is more reactive when poured in water, we need to consider their positions on the periodic table.
Potassium (K) and Calcium (Ca) are both in Group 1 and Group 2, respectively. Group 1 elements, also known as alkali metals, are highly reactive metals. Group 2 elements, known as alkaline earth metals, are also reactive but less so than Group 1 elements.
Now, let's focus on the reactivity of these elements specifically when added to water:
1. Potassium (K): When potassium is added to water, it reacts vigorously, producing hydrogen gas (H2) and forming a strong alkaline solution. The reaction is so intense that the heat generated can ignite the hydrogen gas, causing a fiery explosion.
2. Calcium (Ca): Calcium reacts less violently with water compared to potassium. When calcium is added to water, it reacts more slowly, producing hydrogen gas and forming a weak alkaline solution.
Therefore, in the context of reactivity when poured in water, potassium (K) is more reactive than calcium (Ca).