oxygen is a dash while calcium is a dash
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2
Answer:
Oxygen : Non-metal
Calcium : Alkaline earth metal
Explanation:
Atomic number of O : 8
Atomic number of Ca : 20
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0
Answer:
oxygen is a non metal while calcium is a metal
Explanation:
gas like oxygen is a non metal that is in free state in air while calcium is a metal that reacts with cold water to form hydroxide
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