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The f-block represents a region on the periodic table which is 10 elements in width.
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Q47: Which of the following equations is a
Q47: uranium-235
Q66: A chemical compound formed from lithium and
Q115: The number of valence electrons in neon
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Q157: Hydrogen cyanide may also be called hydrocyanic
Q190: Only helium among the Group VIIIA elements
Q243: Which of the following polyatomic ions has