Atomic Radii. Comparison of Atomic Radii with Ionic Radii.

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Presentation transcript:

Atomic Radii

Comparison of Atomic Radii with Ionic Radii

Cation is always smaller than atom from which it is formed. Anion is always larger than atom from which it is formed.

The Radii (in pm) of Ions of Familiar Elements

(1) أي من الذرات التالية لها أكبر قطر: 1. Which of these atoms has the largest radius? A. BB. GaC. BrD. Si (2) أي من ذرات العناصر التالية لها أعلى قطر ذري: 2. Which of the elements listed below has the greatest atomic radius? A. BB. AlC. SD. P (3) أي ومن الأيونات التالية لها أعلى قطر: 3. Which one of these ions has the largest radius? A. Cl - B. K + C. S 2- D. Na + (4) رتب الأيونات التالية حسب زيادة القطر الأيوني لها: 4. Arrange these ions in order of increasing ionic radius: K +, P 3-, S 2-, Cl -. A. Row 1B. Row 2 C. Row 3 D. Row 4E. Row 5

(5) أي من الذرات التالية لها أصغر قطر: 5. Which of these atoms has the smallest radius? A. AlB. PC. AsD. Te (6) أي من الذرات التالية لها أكبر قطر: 6. Which of these atoms has the largest radius? A. BB. GaC. BrD. Si (7) أي من ذرات العناصر التالية لها أعلى قطر ذري: 7. Which of the elements listed below has the greatest atomic radius? A. BB. AlC. SD. P (8) أي من الأيونات التالية لها أعلى قطر: 8. Which one of these ions has the largest radius? A. Cl - B. K + C. S 2- D. Na + (9) رتب الأيونات التالية حسب زيادة القطر الأيوني لها: 9. Arrange these ions in order of increasing ionic radius: K +, P 3-, S 2-, Cl -. A. Row 1 B. Row 2C. Row 3D. Row 4E. Row 5

(10) إذا كان قطر الذرة X أكبر من قطر الذرة Y ، هذا يدل على أن: (10) If the radius of atom X is greater than the radius of atom Y, then it is also likely that A. X has a larger electron affinity than Y does. B. X has a larger effective nuclear charge than Y does. C. X has greater metallic character than Y does. D. X has a larger first ionization energy than Y does. (11) أي من الذرات التالية لها أصغر قطر: (11) Which of these atoms has the smallest radius? A.AlB. PC. AsD. Te (12) تزداد حجم العناصر في الجدول الدوري: (أ) من يمين الدورة إلى يســـارها (ب) من أسفل الدورة إلى أعلاهــا (ج) من يسار الدورة إلى أســفلها (د) جميع الإجابات السابقــة خطأ