Each of the following describes an "Atom 1" and an "Atom 2." In which case are the two atoms isotopes of each other?
A)Atom 1: nucleus with 6 protons and 8 neutrons,surrounded by 6 electrons Atom 2: nucleus with 7 protons and 8 neutrons,surrounded by 7 electrons
B)Atom 1: nucleus with 8 protons and 8 neutrons,surrounded by 8 electrons Atom 2: nucleus with 8 protons and 8 neutrons,surrounded by 7 electrons
C)Atom 1: nucleus with 92 protons and 143 neutrons,surrounded by 92 electrons Atom 2: nucleus with 92 protons and 146 neutrons,surrounded by 92 electrons
D)Atom 1: nucleus with 1 proton and 0 neutrons,surrounded by 1 electron Atom 2: nucleus with 2 protons and 2 neutrons,surrounded by 2 electrons
E)Atom 1: nucleus with 4 protons and 5 neutrons,surrounded by 4 electrons Atom 2: nucleus with 5 protons and 5 neutrons,surrounded by 4 electrons

Question

Quizplus · Accepted Answer

Isotopes are atoms of the same element (same number of protons) but with different numbers of neutrons. In choice C, both atoms have 92 protons but different numbers of neutrons (143 vs. 146), making them isotopes of each other.

Each of the Following Describes an "Atom 1" and an "Atom