Magnesium's configuration is the most unstable configuration that two outer electrons can have. They are highly screened, seeing a core-charge of 2, and the exclusion principle is placing them in a far-away position relative to the core. Why doesn't Cadmium have similar reactivity? Zinc is not to be compared with silver, by the way, but Cadmium and Mercury, which lie below it, and with Magnesium, which is similar chemically for the reasons explained above.
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Learn more. What makes zinc reactive? Ask Question. Asked 10 years, 7 months ago. Active 10 years, 2 months ago. What is the metal activity series used for? Question 5e3e7. Can a metal displace any of the metals which are lower in the reactivity series? Do magnesium, aluminium and zinc react with water?
How does the metal activity series relate to single displacement reactions? Is iron one of the most reactive metals according to the metal activity series? How does the metal activity series relate to corrosion? Why is hydrogen included in the metal activity series? What is the metal activity series based on? Note that aluminium can be difficult to place in the correct position in the reactivity series during these experiments.
This is because its protective aluminium oxide layer makes it appear to be less reactive than it really is. When this layer is removed, the observations are more reliable. It is useful to place carbon and hydrogen into the reactivity series because these elements can be used to extract metals.
Here is the reactivity series including carbon and hydrogen:. Note that zinc and iron can be displaced from their oxides using carbon but not using hydrogen. However, copper can be extracted using carbon or hydrogen. The reactivity series In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom.
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