Chemistry - Periodic Classification Of Elements

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41. Which of the following orders of ionic radii is correctly represented? (NTSE West Bengal, Stage-I, 2015-16)

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42. What is the electronic configuration of the elements of II group? (NTSE Madhya Pradesh, Stage-I, 2015-16)

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43. Identify the wrong sequence of the element in a group (NTSE Jharkhand, Stage-I, 2016-17)

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44. 14 elements after actinium is called (NTSE Jharkhand, Stage-I, 2016-17)

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45. Which of following set of elements is written in order of their increasing metallic character? (NTSE Punjab, Stage-I, 2016-17)

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