Respuesta :
Answer: The correct answer is metals.
Explanation:
Ions are formed when an atom gains or looses electrons.
When an atom looses electrons, it tends to form positive ions known as cations.
When an atom gains electrons, it tends to form negative ions known as anions.
Metals are the elements which looses electrons to form positive ions. For Example: Sodium will loose 1 electron to form [tex]Na^+[/tex] ions.
Non-metals are the elements which gains electrons to form negative ions. For Example: Chlorine will gain 1 electron to form [tex]Cl^-[/tex] ion.
Hence, the correct answer is metals.