Question

Javier's teacher gives him four cards, each displaying information about an element, and asks him to put them in order of reactivity. The elements are carbon (C), helium (He), magnesium (Mg), and potassium (K). Javier arranges the elements in order from most reactive to least reactive, as shown in the diagram.

Answer 1

Step-by-step explanation:

Order of Reactivity (Most Reactive to Least Reactive):

Potassium (K) - Most reactive

Magnesium (Mg)

Carbon (C)

Helium (He) - Least reactive

Most Reactive

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V

1. K → 2. Mg → 3. C → 4. He

^

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Least Reactive

In this arrangement, potassium (K) is the most reactive element, followed by magnesium (Mg), carbon (C), and helium (He) as the least reactive element. The chart visually shows the sequence of elements from the most reactive at the top to the least reactive at the bottom.