Question
The periodic table is arranged by various patterns. The pattern that represents the ions in each group as you go across the table are: (1 point)
Answers
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GPT-4o mini
The periodic table is arranged in such a way that elements in the same group (vertical columns) typically have similar chemical properties and tend to form ions with the same charge. As you move across a period (horizontal rows), the elements' ability to lose or gain electrons changes, which affects the type of ions they form.
For example:
- Group 1 (alkali metals) generally form +1 ions.
- Group 2 (alkaline earth metals) typically form +2 ions.
- Group 13 elements often form +3 ions.
- Groups 15-17 (nonmetals) tend to gain electrons and form ions with charges of -3 (for Group 15), -2 (for Group 16), and -1 (for Group 17).
As you move across a period from left to right, the metallic character decreases and non-metallic character increases. Consequently, elements on the left tend to lose electrons (form positive ions), while elements on the right tend to gain electrons (form negative ions).
In summary, elements within the same group form ions with similar charges, while moving across periods influences the charges of the ions formed.
For example:
- Group 1 (alkali metals) generally form +1 ions.
- Group 2 (alkaline earth metals) typically form +2 ions.
- Group 13 elements often form +3 ions.
- Groups 15-17 (nonmetals) tend to gain electrons and form ions with charges of -3 (for Group 15), -2 (for Group 16), and -1 (for Group 17).
As you move across a period from left to right, the metallic character decreases and non-metallic character increases. Consequently, elements on the left tend to lose electrons (form positive ions), while elements on the right tend to gain electrons (form negative ions).
In summary, elements within the same group form ions with similar charges, while moving across periods influences the charges of the ions formed.