Question

3. Which of the following BEST explains the high reactivity of

Element X with water?
O Element X has a large number of valence electrons, leading to stronger
interactions with water molecules.
O Element X is a very small element, allowing it to easily donate its valence
electrons to water molecules.
Element X has a higher density than water, causing it to sink rather than
react with water.
Element X's valence electrons are located in an incomplete outer shell,
driving its tendency to react with water.

Answer 1

Element X's high reactivity with water is best explained by its incomplete outer shell of valence electrons.

Step-by-step explanation:

Element X's valence electrons are located in an incomplete outer shell, driving its tendency to react with water. When an element has an incomplete outer shell, it wants to gain or lose electrons to achieve a stable electron configuration. Element X is highly reactive with water because it can easily donate its valence electrons to water molecules in order to attain stability. This reaction is driven by the desire to complete the outer shell and achieve a more stable state.

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