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Ions.

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Presentation on theme: "Ions."— Presentation transcript:

1 Ions

2 IONS: How is an ion different from an atom?

3 IONS When an atom gains or loses electrons, it becomes an ion.
Atom is no longer neutral, it has a charge Only Valence electrons can be gained or lost. Can form cations and anions.

4 CA+IONS Form from metals. Lose electrons Have a positive charge.
Na+, Mg2+, or Al3+. Transition metals can have multiple charges, because multiple cations.

5 ANIONS: Form from nonmetals. gain electrons Have a negative charge.
Cl-, O2-, or P3-.

6 Page 132 Element: ION: F Na Al S Ba P B Xe Be

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