Consider the new element moonium, atomic number 118, atomic mass 273.2 g. The nucleus of an atom of moonium-273 contains

Question

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The atomic number of moonium is given as 118, which represents the number of protons in its nucleus. The atomic mass is given as 273.2 g, which is the sum of protons and neutrons in an atom. Subtracting the atomic number from the atomic mass, we get the number of neutrons. Therefore, the number of neutrons in moonium-273 is 273.2 - 118 = 155. Therefore, the correct answer is B: 118 protons, 155 neutrons.

Consider the New Element Moonium, Atomic Number 118, Atomic Mass