(4 points) 2) use a periodic table to identify the symbol of the element describec below: a) The atomic structure shows two energy levels and five valence electrons b) A halogen in period 2 c) The smallest atomic radius (smallest atom) in group 5A d) A noble gas in period 1 e) The only metal found in liquid state at room temperature. f) An alkali metal in period 4 g) Element with electronic distribution represented as: 27 - 82 -18ē - 77 h) The most electronegative element in group 7A i) Group 3A, Period 4 j) Its atomic structure shows four energy levels and five valence electrons
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Solution: ) a) Nitrogen ...