What is the atomic number of plutonium?

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Multiple Choice

What is the atomic number of plutonium?

The atomic number is the number of protons in an atom’s nucleus, and it uniquely identifies the element. Plutonium has 94 protons, so its atomic number is 94. On the periodic table, it sits after uranium (92) and neptunium (93), confirming 94 as its number. Isotopes differ in neutrons and mass, not in the atomic number, which stays the same for all plutonium atoms.

The atomic number is the number of protons in an atom’s nucleus, and it uniquely identifies the element. Plutonium has 94 protons, so its atomic number is 94. On the periodic table, it sits after uranium (92) and neptunium (93), confirming 94 as its number. Isotopes differ in neutrons and mass, not in the atomic number, which stays the same for all plutonium atoms.

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