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13. Select Three Elements That Are in the Same Period of the Periodic Table and Arrange These Elements in Order of Increasing

Вопрос

13. Select three elements that are in the same period of the Periodic Table and arrange these elements in order of increasing electronegativity. 5)K 1) F 2) Se 3) Na 4) Br Answer (score:1):

Решения

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профессионал · Репетитор 6 лет

Ответ

The correct answer is: 3) Na, 4) Br, 2) Se.Explanation: The elements in the same period of the Periodic Table are K (Potassium), Na (Sodium), F (Fluorine), Se (Selenium), and Br (Bromine). Electronegativity increases from left to right across a period. Therefore, the order of increasing electronegativity is Na, Br, Se.