5 Questions
What type of ion do Group I elements form?
Cations
What charge do Sodium (Na) ions have?
+1
Which group of elements forms anions?
Group V
What type of ion does Fluorine (F) form?
Anion
How is the charge of an ion determined for non-metallic elements?
By the number of electrons they gain
Study Notes
Ion Formation
- Metallic elements (Group I to III) form cations by losing valence electrons to achieve a stable electronic configuration.
- The charge of the cation is equal to the group number of the element: Group I elements form +1 ions.
- Examples of cations: Na+ (Sodium), K+ (Potassium).
Anion Formation
- Non-metallic elements (Group V to VII) form anions by gaining electrons to achieve a stable electronic configuration.
- The charge of the anion is defined by the number of electrons gained.
- Examples of anions: F- (Fluorine), Cl- (Chlorine), with a charge of -1.
Learn about the formation of cations and anions from metallic and non-metallic elements, respectively, and how they achieve stable electronic configurations.
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