Question

nonmetallic elements form ions by dropdown valence electrons to complete their outer shell.
the dropdown valence electrons an element has in its outer shell, the easier it is to complete.
the dropdown electron shells an element has, the easier it is to fill its outermost shell.
reactivity in nonmetals dropdown as you go from left to right in a group, and dropdown as you go from top to bottom.

Explanation:

Determinar la formación de iones en no metales

$$ \text{No metales} ightarrow \text{ganan electrones} ightarrow \text{completar capa de valencia} $$

Analizar la relación entre electrones de valencia y facilidad para completar la capa

$$ \text{Más electrones de valencia} ightarrow \text{menos electrones necesarios para completar} ightarrow \text{más fácil de completar} $$

Analizar el efecto del número de capas y las tendencias de reactividad

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Answer:

Nonmetallic elements form ions by <blank>gaining</blank> valence electrons to complete their outer shell.
The <blank>more</blank> valence electrons an element has in its outer shell, the easier it is to complete.
The <blank>fewer</blank> electron shells an element has, the easier it is to fill its outermost shell.
Reactivity in nonmetals <blank>increases</blank> as you go from left to right in a period, and <blank>decreases</blank> as you go from top to bottom.