How many protons and electrons does a neutral uranium atom have?

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Study for the NOVA Hunting the Elements Test. Dive deep into the secrets of the periodic table with engaging flashcards and multiple-choice questions, each crafted with hints and explanations. Unlock the mysteries of elements and ace your exam!

Multiple Choice

How many protons and electrons does a neutral uranium atom have?

Explanation:
In a neutral atom, the number of protons equals the number of electrons, and that number is the atomic number of the element. Uranium has atomic number 92, so a neutral uranium atom has 92 protons and 92 electrons. The total count of protons and neutrons (the mass number) for the common isotope uranium-238 is 238 (92 protons + 146 neutrons). If you add the electrons to the protons, you’d get 184, but the counts that matter here are 92 protons and 92 electrons.

In a neutral atom, the number of protons equals the number of electrons, and that number is the atomic number of the element. Uranium has atomic number 92, so a neutral uranium atom has 92 protons and 92 electrons. The total count of protons and neutrons (the mass number) for the common isotope uranium-238 is 238 (92 protons + 146 neutrons). If you add the electrons to the protons, you’d get 184, but the counts that matter here are 92 protons and 92 electrons.

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