Give four examples of each with its name and chemical formula:
(a) Metals that form positive ions.
(b) Non-metals that form negative ions.
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Answer:
a)
Sodium (Na) forms sodium ion ()
Magnesium (Mg) forms magnesium ion ()
Aluminium (Al) forms aluminium ion ()
Lithium (Li) forms lithium ion ()
b)
Chlorine (Cl) forms chloride ions ()
Oxygen(O) forms oxide ions ()
Phosphorus (P) forms phosphide ions ()
Fluorine (F) forms fluoride ions ()
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