Problem: Which of the following statements is TRUE? (A) atoms contain equal numbers of protons and neutrons (B) the mass of an atom is equal to the number of protons + the number of electrons (C) neutrons have a mass of 0 and a charge of 1 (D) to calculate the number of neutrons in an atom, use the mass in the periodic table (E) the atomic number is the number of electrons in an atom

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Which of the following statements is TRUE?

(A) atoms contain equal numbers of protons and neutrons

(B) the mass of an atom is equal to the number of protons + the number of electrons

(C) neutrons have a mass of 0 and a charge of 1

(D) to calculate the number of neutrons in an atom, use the mass in the periodic table

(E) the atomic number is the number of electrons in an atom

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