Give the number of protons (p), neutrons (n), and electrons E) in one atom of ²³⁸U. A) 146 p, 92 n, 92 e B) 92 p, 92 n, 92 e C) 92 p, 146 n, 92e D) 146 p, 28 n, 146 e E) 238 p, 146 n, 238 e

Question

Quizplus · Accepted Answer

The atomic number (number of protons, p) of uranium (U) is 92, which also equals the number of electrons (e) in a neutral atom. The mass number is 238, which is the sum of protons and neutrons (n). Therefore, the number of neutrons is 238 - 92 = 146.

Give the Number of Protons (P), Neutrons (N), and Electrons