Alkali metals are metals found in group 1A of the periodic table.
These are Li, Na, K, Rb, Cs, and Fr
Alkali metals tend to lose 1 electron in order to achieve the same stable valence as noble gases.
Na → Na+ + 1e-
In a reaction with oxygen gas O2, alkali metals can from ionic oxides (O2-)
Example: 4K(s) + O2(g) → 2K2O(s)
Consider the following three statements about the reactivity of an alkali metal M with oxygen gas:
Which of the statements I, II, and III is or are true?
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