Hidrógeno
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Litio
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Sodio
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Potasio
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Rubidio
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Cesio
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Francio
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Berilio
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Magnesio
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Calcio
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Estroncio
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Bario
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Radio
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Titanio
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Vanadio
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Cromo
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Manganeso
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Hierro
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Cobalto
____________________
Níquel
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Paladio
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Platino
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Cobre
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Plata
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Oro
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Zinc
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Cadmio
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Mercurio
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Boro
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Aluminio
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Galio
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Indio
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Talio
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Carbono
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Silicio
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Germanio
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Estaño
____________________
Plomo
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Nitrógeno
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Fósforo
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Arsénico
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Antimonio
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Bismuto
____________________
Oxígeno
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Azufre
____________________
Selenio
____________________
Teluro
____________________
Polonio
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Flúor
____________________
Cloro
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Bromo
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Yodo
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Astato
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Helio
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Neón
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Argón
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Kriptón
____________________
Xenón
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Radón
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