Class 10 Science
Question 10: Which of the following is the outermost shell for elements of period 2?
Question 11: Which one of the following elements exhibit maximum number of valence electrons?
Question 12: Which of the following gives the correct increasing order of the atomic radii of O, F and N?
Question 13: Which among the following elements has the largest atomic radii?
Question 14: Which of the following elements would lose an electron easily?
Question 15: Which of the following elements does not lose an electron easily?
Question 16: Which of the following are the characteristics of isotopes of an element?
Question 17: Arrange the following elements in the order of their decreasing metallic character: Na, Si, Cl, Mg, Al
Question 18: Arrange the following elements in the order of their increasing nonmetallic character: Li, O, C, Be, F
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