Arrange the following elements in the order of decreasing electronegativity: Al, P, As1 pointP > As > AlP > Al > AsAl > As > PAs > P > Al
Question
Arrange the following elements in the order of decreasing electronegativity:
- Al
- P
- As
1 point
- P > As > Al
- P > Al > As
- Al > As > P
- As > P > Al
Solution
To determine the order of decreasing electronegativity among the given elements (Aluminum, Phosphorus, and Arsenic), we can reference periodic trends as well as specific electronegativity values.
1. ### Break Down the Problem
We need to compare the electronegativity values of Aluminum (Al), Phosphorus (P), and Arsenic (As) to establish their order from highest to lowest.
2. ### Relevant Concepts
Electronegativity generally increases across a period (from left to right on the periodic table) and decreases down a group (from top to bottom). The electronegativity values for these elements are approximately:
- Al: 1.61
- P: 2.19
- As: 2.18
3. ### Analysis and Detail
- Phosphorus (P) has a higher electronegativity than Arsenic (As), even though they are in the same group, because it is located higher in the periodic table.
- Aluminum (Al) has the lowest electronegativity of the three elements.
4. ### Verify and Summarize
Reviewing the values:
- P (2.19) > As (2.18) > Al (1.61) confirms the order based on electronegativity.
Final Answer
The order of decreasing electronegativity is:
P > As > Al
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