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Which term correctly completes the sentence: 'I can't list every ___ on the periodic table, but I know a few, like oxygen, mercury, and lead!'?
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2. Atoms & Elements
Periodic Table: Element Symbols
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Which of the following element symbols represents the element with atomic number 12 on the periodic table?
A
Mn
B
Mg
C
Mc
D
Mo
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Recall that the atomic number of an element corresponds to the number of protons in its nucleus and uniquely identifies the element on the periodic table.
Look up the periodic table or recall from memory the element that has the atomic number 12.
Identify the symbol associated with atomic number 12, which is the element magnesium.
Compare the given options: Mn, Mg, Mc, and Mo, and find which one matches the symbol for atomic number 12.
Conclude that the correct symbol for the element with atomic number 12 is Mg.
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