Characterize EACH of the following statements as being TRUE or FALSE and then indicate the collective true-false status using the choices provided. (1) Most of the mass of an atom is concentrated in its nucleus.
(2) Sufficient information is present on a "standard" periodic table to determine the number of neutrons present in atoms of an element.
(3) An atom whose electron configuration is 1s²2s²2p⁶3s¹ contains 12 electrons.

Question

Quizplus · Accepted Answer

1) True: Most of the mass of an atom is indeed concentrated in its nucleus, which contains the protons and neutrons, both of which are much more massive than electrons.2) False: A standard periodic table provides information about atomic numbers (number of protons) and relative atomic masses, but it does not directly provide the number of neutrons. The number of neutrons can be estimated by subtracting the atomic number from the mass number (rounded), but the mass number is not directly given for elements with isotopes.3) False: The given electron configuration is nonsensical and does not follow the known format for electron configurations (e.g., 1s^2 2s^2 2p^6 for neon, which has 10 electrons). The notation used in the statement does not correspond to any standard notation for electron configurations.

Characterize EACH of the Following Statements as Being TRUE or FALSE