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Based on information from the periodic table, which statement is true for the
element cobalt?
27
Co
58.9
A. A cobalt atom contains 27 protons, and most cobalt atoms
contain 32 neutrons.
B. A cobalt atom contains 27 protons, and neutral cobalt atoms
contain 32 electrons.
C. The atomic number of cobalt is 27, and its average atomic mass is
32
D. The average atomic number of cobalt is 58.9, and its atomic mass
is 27.
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Based on information from the periodic table, which statement is true for the
element cobalt?
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