Asked by tylen
Chromium, calcium, and potassium are near each other on the periodic table and have some common characteristics but differ in chemical reactivity. Which lists these metals in order from most reactive to least reactive?
a.calcium, chromium, potassium
b.chromium, calcium, potassium
c.potassium, calcium, chromium
d.potassium, chromium, calcium
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c. potassium, calcium, chromium
Reason: Reactivity for metals generally increases down a group and is higher for alkali metals than for alkaline earth or transition metals. Potassium (Group 1) is most reactive, calcium (Group 2) is next, and chromium (a transition metal) is least reactive of the three.
Reason: Reactivity for metals generally increases down a group and is higher for alkali metals than for alkaline earth or transition metals. Potassium (Group 1) is most reactive, calcium (Group 2) is next, and chromium (a transition metal) is least reactive of the three.
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