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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
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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

This problem has been solved

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