Question

the table below describes four atoms. atom a atom b atom c atom d number of protons 79 80 80 79 number of neutrons 118 120 118 120 number of electrons 79 80 80 79 which atoms represent the same element? select all that apply. atom a and atom d atom b and atom c atom a and atom c atom a and atom b atom b and atom d atom c and atom d

Explanation:

Elements are identified by the number of protons. Atoms A and D both have 79 protons, so they are the same element. Atoms B and C both have 80 protons, so they are the same element.

Answer:

A. Atom A and Atom D
B. Atom B and Atom C