Main-group elements tend to form ions that have the same number of total electrons as the nearest halogen.
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Q27: All carbon atoms have exactly 6 protons.
Q28: Halogens form anions with a 1- charge.
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Q30: The elements within a group on the
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Q33: Group 2A elements are called alkali metals.
Q34: All elemental symbols are comprised of a
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Q37: Mendeleev is best remembered for his pioneering
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