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Which of the following correctly identifies an exception to the order of the periodic table?
A.) Hydrogen is the only Noble Gas found in Group 1
B.) Cobalt is located before Nickel even though it has a higher average atomic mass.
C.) Boron has 8 protons even though its atomic number is 5
D.) Bromine is the only noble gas not found in group 18
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Which of the following correctly identifies an exception to the order of the periodic table?
A.) Hy...
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