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Which of the following sets contains only elements that typically form cations in binary ionic compounds?
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2. Atoms & Elements
Periodic Table: Charges
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Which of the following elements has 16 protons?
A
Sulfur (S)
B
Magnesium (Mg)
C
Phosphorus (P)
D
Chlorine (Cl)
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Recall that the number of protons in an atom is equal to its atomic number, which uniquely identifies each element on the periodic table.
Look up the atomic numbers of the given elements: Magnesium (Mg), Phosphorus (P), Sulfur (S), and Chlorine (Cl).
Magnesium has an atomic number of 12, meaning it has 12 protons.
Phosphorus has an atomic number of 15, meaning it has 15 protons.
Sulfur has an atomic number of 16, meaning it has 16 protons, which matches the number we are looking for.
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