Question

rank the following elements in order of increasing electronegativity. question list (4 items) (drag and drop into the appropriate area) no more items correct answer list highest electronegativity as br cr k lowest electronegativity

Explanation:

Step1: Recall electronegativity trend

Electronegativity increases across a period and decreases down a group in the periodic table.

Step2: Locate elements in periodic table

K (Potassium) is in Group 1, Period 4; Cr (Chromium) is in Group 6, Period 4; As (Arsenic) is in Group 15, Period 4; Br (Bromine) is in Group 17, Period 4.

Step3: Rank based on trend

Since they are in the same period, the order of increasing electronegativity is based on their group - position. K is the most electropositive (lowest electronegativity as it is in Group 1), followed by Cr, then As, and Br has the highest electronegativity among them as it is in Group 17.

Answer:

1. K
2. Cr
3. As
4. Br