How do metals react with oxygen?

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1. Metals react with oxygen to form a metallic oxide or basic oxide.

2. Active metals like (sodium Na, Potassium K) react instantaneously with oxygen to form metallic oxide.

$Na+O_2⟶{Na}_{2}O$

$K+O_2⟶K_{2}O$

3. Moderately reactive metals like (Magnesium, Aluminum, and Zinc) with oxygen after heating.

$Mg+O_2⟶MgO$

$Al+O_2⟶Al{}_2{O}_3$

4. Least reactive metals like copper Cu, Silver Ag, Gold Au do not react with oxygen.