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A. iron turns to rust when it is exposed to oxygen :)
Answer:
two valence electrons
Explanation:
Magnesium is alkaline earth metal and belongs to group IIA of the periodic table. It has two valence electrons which are present in 3s subshell.
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Answer: i might be wrong but i feel like it’s A. wind blowing at 3km/h just because “ energy of an object is the energy that it possesses due to its motion.”
Explanation:
Answer:
Lithium is more reactive as it has only one electron in its valance shell. Beryllium has 2 valance electrons. Lithium is more reactive as it is easier to lose oneelectron than losing two electrons.
